Largest members of k-sociable cycles of order r.

Terms

a(0) =6a(1) =28a(2) =120a(3) =284a(4) =496a(5) =672a(6) =1210a(7) =2924a(8) =5564a(9) =6368a(10) =8128a(11) =10856a(12) =14595a(13) =15472a(14) =18416a(15) =30240a(16) =32760a(17) =66992a(18) =71145a(19) =76084a(20) =87663a(21) =88730a(22) =123152a(23) =124155a(24) =139815a(25) =153176a(26) =168730a(27) =176336a(28) =180848a(29) =202444