solutions of T^63 ...:
r: 3.70215492815358877022, r/4: 0.925538732038397192556; 4R: 6.30164125574472648871, R: 1.57541031393618162218
r: 3.77445577279868944369, r/4: 0.943613943199672360922; 4R: 6.69760483521597305878, R: 1.67440120880399326469
r: 3.88609705225247470359, r/4: 0.971524263063118675897; 4R: 7.32955619502042369953, R: 1.83238904875510592488
r: 3.92221588177610553362, r/4: 0.980553970444026383404; 4R: 7.53934565970450199293, R: 1.88483641492612549823
r: 3.95104659741737845209, r/4: 0.987761649354344613022; 4R: 7.70867602012868693056, R: 1.92716900503217173264
r: 3.96898478256484191974, r/4: 0.992246195641210479936; 4R: 7.81487063910160165223, R: 1.95371765977540041306
r: 3.98475062336931948866, r/4: 0.996187655842329872166; 4R: 7.90873628370354127688, R: 1.97718407092588531922
r: 3.99453883580021427310, r/4: 0.998634708950053568275; 4R: 7.96726283911570265989, R: 1.99181570977892566497
r: 3.99939717157833968589, r/4: 0.999849292894584921471; 4R: 7.99638339287214407678, R: 1.99909584821803601919