solutions of T^57 ...:
r: 3.70164076416034958182, r/4: 0.925410191040087395456; 4R: 6.29886281857291762952, R: 1.57471570464322940738
r: 3.77413338558488660000, r/4: 0.943533346396221650000; 4R: 6.69581604101666511234, R: 1.67395401025416627808
r: 3.88602880500281448307, r/4: 0.971507201250703620768; 4R: 7.32916226330597338343, R: 1.83229056582649334586
r: 3.92218590546323517418, r/4: 0.980546476365808793545; 4R: 7.53917046608798761859, R: 1.88479261652199690465
r: 3.95102735541470540937, r/4: 0.987756838853676352342; 4R: 7.70856245240591003979, R: 1.92714061310147750995
r: 3.96897421335592148985, r/4: 0.992243553338980372462; 4R: 7.81480787957241281955, R: 1.95370196989310320489
r: 3.98474661711796156254, r/4: 0.996186654279490390635; 4R: 7.90871236839711543847, R: 1.97717809209927885962
r: 3.99453746682130409447, r/4: 0.998634366705326023618; 4R: 7.96725464019655292042, R: 1.99181366004913823011
r: 3.99939702408398929885, r/4: 0.999849256020997324713; 4R: 7.99638250808389108205, R: 1.99909562702097277051