solutions of T^15 ...:
r: 3.74112075663244020631, r/4: 0.935280189158110051577; 4R: 6.51374300244120148928, R: 1.62843575061030037232
r: 3.90610742813799013941, r/4: 0.976526857034497534852; 4R: 7.44546038387880352228, R: 1.86136509596970088057
r: 3.99029618557765366727, r/4: 0.997574046394413416817; 4R: 7.94187127748026534030, R: 1.98546781937006633508
solutions of T^472 ...:
r: 3.60520806689352951355, r/4: 0.901302016723382378387; 4R: 5.78710907180712094860, R: 1.44677726795178023715
r: 3.64700615952439465343, r/4: 0.911751539881098663358; 4R: 6.00664160856008503603, R: 1.50166040214002125901
r: 3.67299928899484953872, r/4: 0.918249822248712384680; 4R: 6.14492519896697116232, R: 1.53623129974174279058
r: 3.79406309782650675707, r/4: 0.948515774456626689268; 4R: 6.80678859463585546839, R: 1.70169714865896386710
r: 3.80849273217267206285, r/4: 0.952123183043168015713; 4R: 6.88763142666672029111, R: 1.72190785666668007278
r: 3.86526394625393295530, r/4: 0.966315986563483238826; 4R: 7.20973748170266079913, R: 1.80243437042566519978
r: 3.87492192044317297104, r/4: 0.968730480110793242761; 4R: 7.26517604864466177781, R: 1.81629401216116544445
r: 3.88409994531539255682, r/4: 0.971024986328848139206; 4R: 7.31803249456825033667, R: 1.82950812364206258417
r: 3.88801489476960254417, r/4: 0.972003723692400636042; 4R: 7.34063003241107845662, R: 1.83515750810276961416
r: 3.89594658033254886005, r/4: 0.973986645083137215014; 4R: 7.38650659613978386803, R: 1.84662664903494596701
r: 3.91500555458515726751, r/4: 0.978751388646289316877; 4R: 7.49725738326232028585, R: 1.87431434581558007146
r: 3.92055306480917609568, r/4: 0.980138266202294023919; 4R: 7.52963020436627154774, R: 1.88240755109156788694
r: 3.92381385931367794809, r/4: 0.980953464828419487022; 4R: 7.54868748391474374486, R: 1.88717187097868593621
r: 3.92848208934034954542, r/4: 0.982120522335087386354; 4R: 7.57600734758721901662, R: 1.89400183689680475416
r: 3.93246118628096698076, r/4: 0.983115296570241745190; 4R: 7.59932860904437612733, R: 1.89983215226109403183
r: 3.94243417188295120351, r/4: 0.985608542970737800878; 4R: 7.65791885586450882686, R: 1.91447971396612720671
r: 3.94593642743573017396, r/4: 0.986484106858932543491; 4R: 7.67854143449279311283, R: 1.91963535862319827821
r: 3.94959934451964018041, r/4: 0.987399836129910045102; 4R: 7.70013629319069100677, R: 1.92503407329767275169
r: 3.95250412705598067316, r/4: 0.988126031763995168291; 4R: 7.71728062028259846610, R: 1.92932015507064961653
r: 3.95661326179573817048, r/4: 0.989153315448934542621; 4R: 7.74156197982643417591, R: 1.93539049495660854398
r: 3.96437062217899927364, r/4: 0.991092655544749818411; 4R: 7.78749318563790726033, R: 1.94687329640947681508
r: 3.96776003544761934477, r/4: 0.991940008861904836192; 4R: 7.80759962800005482980, R: 1.95189990700001370745
r: 3.97013350279951851529, r/4: 0.992533375699879628823; 4R: 7.82169302445213746012, R: 1.95542325611303436503
r: 3.97260693316162047415, r/4: 0.993151733290405118537; 4R: 7.83639197908053477295, R: 1.95909799477013369324
r: 3.97481336750402137594, r/4: 0.993703341876005343985; 4R: 7.84951457148061574205, R: 1.96237864287015393551
r: 3.97712727208664783127, r/4: 0.994281818021661957816; 4R: 7.86328679420208522705, R: 1.96582169855052130676
r: 3.97841749813775929555, r/4: 0.994604374534439823887; 4R: 7.87097079321318939676, R: 1.96774269830329734919
r: 3.98050858454918844694, r/4: 0.995127146137297111734; 4R: 7.88343142257140681696, R: 1.97085785564285170424
r: 3.98227925467523170626, r/4: 0.995569813668807926565; 4R: 7.89398955286625553489, R: 1.97349738821656388372
r: 3.98398534908847845975, r/4: 0.995996337272119614937; 4R: 7.90416856357468865619, R: 1.97604214089367216405
r: 3.98549381482543452785, r/4: 0.996373453706358631962; 4R: 7.91317331836092595019, R: 1.97829332959023148755
r: 3.98702336946790161143, r/4: 0.996755842366975402858; 4R: 7.92230860974737625670, R: 1.98057715243684406417
r: 3.98845738691256933007, r/4: 0.997114346728142332518; 4R: 7.93087755339230210621, R: 1.98271938834807552655
r: 3.99194957241002734908, r/4: 0.997987393102506837271; 4R: 7.95176224384454548737, R: 1.98794056096113637184
r: 3.99305902130310670023, r/4: 0.998264755325776675057; 4R: 7.95840230500391092797, R: 1.98960057625097773199
r: 3.99407472652929919422, r/4: 0.998518681632324798555; 4R: 7.96448346804149775608, R: 1.99112086701037443902
r: 3.99498205307424671962, r/4: 0.998745513268561679905; 4R: 7.96991749823682999452, R: 1.99247937455920749863
r: 3.99582900586782973467, r/4: 0.998957251466957433668; 4R: 7.97499143239902900682, R: 1.99374785809975725171
r: 3.99659085918525201166, r/4: 0.999147714796313002914; 4R: 7.97955677735260685051, R: 1.99488919433815171263
r: 3.99728153347130499350, r/4: 0.999320383367826248376; 4R: 7.98369659088809759609, R: 1.99592414772202439902
r: 3.99786894275173955523, r/4: 0.999467235687934888808; 4R: 7.98721819791543269477, R: 1.99680454947885817369
r: 3.99840497034736381881, r/4: 0.999601242586840954702; 4R: 7.99043236620377570155, R: 1.99760809155094392539
r: 3.99885905351056143737, r/4: 0.999714763377640359343; 4R: 7.99315562282226038641, R: 1.99828890570556509660
r: 3.99923707957975739440, r/4: 0.999809269894939348601; 4R: 7.99542305952611198957, R: 1.99885576488152799739
r: 3.99953830021670771192, r/4: 0.999884575054176927979; 4R: 7.99723001446693616364, R: 1.99930750361673404091
r: 3.99976460236203367467, r/4: 0.999941150590508418667; 4R: 7.99858766958425000813, R: 1.99964691739606250203
r: 3.99991527323360600984, r/4: 0.999978818308401502460; 4R: 7.99949164658026100263, R: 1.99987291164506525066
r: 3.99999058740318497176, r/4: 0.999997646850796242940; 4R: 7.99994352450770680936, R: 1.99998588112692670234