solutions of T^6 ...:
r: 3.54409035955192285362, r/4: 0.886022589887980713404; 4R: 5.47239575756503210290, R: 1.36809893939125802572
r: 3.96076865240664525605, r/4: 0.990192163101661314012; 4R: 7.76615101307386215734, R: 1.94153775326846553933
solutions of T^108 ...:
r: 3.66210891320944048249, r/4: 0.915527228302360120624; 4R: 6.08682386578914831943, R: 1.52170596644728707986
r: 3.80074011618565026954, r/4: 0.950185029046412567386; 4R: 6.84414519841160977095, R: 1.71103629960290244274
r: 3.87053211245871726321, r/4: 0.967633028114679315802; 4R: 7.23995460865670581294, R: 1.80998865216417645324
r: 3.89946240867343915702, r/4: 0.974865602168359789255; 4R: 7.40688225931038150415, R: 1.85172056482759537604
r: 3.91204201728225157044, r/4: 0.978010504320562892610; 4R: 7.47998871041728515404, R: 1.86999717760432128851
r: 3.93047131951669336487, r/4: 0.982617829879173341218; 4R: 7.58766215450990993421, R: 1.89691553862747748355
r: 3.94421219658501052641, r/4: 0.986053049146252631602; 4R: 7.66838545851993266962, R: 1.91709636462998316741
r: 3.97372376239585720073, r/4: 0.993430940598964300183; 4R: 7.84303301503777257250, R: 1.96075825375944314313
r: 3.98140863597990151756, r/4: 0.995352158994975379390; 4R: 7.88879745469553691777, R: 1.97219936367388422944
r: 3.98774528534948060138, r/4: 0.996936321337370150346; 4R: 7.92662189012804926309, R: 1.98165547253201231577
r: 3.99251939968235243149, r/4: 0.998129849920588107872; 4R: 7.95517235747522697782, R: 1.98879308936880674445
r: 3.99621953705226809185, r/4: 0.999054884263067022962; 4R: 7.97733151421370772491, R: 1.99433287855342693123
r: 3.99864161532928715733, r/4: 0.999660403832321789333; 4R: 7.99185153718463657163, R: 1.99796288429615914291
r: 3.99984935971391444549, r/4: 0.999962339928478611373; 4R: 7.99909618097598246490, R: 1.99977404524399561622