54384
domain: N
Appears in sequences
- Principal diagonal of the convolution array A213841.at n=21A213842
- Number of compositions of n where no consecutive parts differ by 1.at n=21A238422
- p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - S^6.at n=27A291381
- a(n) = 1*2*3*4*5 + 6*7*8*9*10 + 11*12*13*14*15 + ... + (up to n).at n=13A319206
- Array read by antidiagonals: T(n,k) is the number of nonisomorphic k-tuples of involutions on a (2n)-set that pairwise commute.at n=50A362903