Array read by antidiagonals: T(n,k) is the number of nonisomorphic multisets of derangements of an n-set with k derangements.
A362759
Array read by antidiagonals: T(n,k) is the number of nonisomorphic multisets of derangements of an n-set with k derangements.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =0a(5) =1a(6) =1a(7) =0a(8) =1a(9) =1a(10) =1a(11) =0a(12) =1a(13) =1a(14) =1a(15) =1a(16) =0a(17) =1a(18) =2a(19) =2a(20) =1a(21) =1a(22) =0a(23) =1a(24) =2a(25) =7a(26) =2a(27) =1a(28) =1a(29) =0
External references
- oeis: A362759