Triangle read by rows: T(n,k) is the number of subpermutations of an n-set whose orbits are each of size at most k.
A261763
Triangle read by rows: T(n,k) is the number of subpermutations of an n-set whose orbits are each of size at most k.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =7a(6) =1a(7) =8a(8) =26a(9) =34a(10) =1a(11) =16a(12) =115a(13) =179a(14) =209a(15) =1a(16) =32a(17) =542a(18) =1102a(19) =1402a(20) =1546a(21) =1a(22) =64a(23) =2809a(24) =7609a(25) =10759a(26) =12487a(27) =13327a(28) =1a(29) =128
External references
- oeis: A261763