24716

Appears in sequences

• Number of unlabeled 3-element intersecting families (with not necessarily distinct sets) of an n-element set.at n=14A055484
• Number of lower triangles of a 3 X 3 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less.at n=24A195249
• Number of partitions p of n such that the multiplicity of (max(p) - min(p)) is a part.at n=49A240495
• Total number of inversions in all compositions of n into distinct parts.at n=23A271372
• Numbers n such that the decimal digits of n-phi(n) are a permutation of those of n.at n=43A273799
• Number of compositions of n with strictly increasing run-lengths.at n=47A333192
• Given the associative array U(n,k) described below, numbers m > 5 such that [m-3..m+3] are not in U(n,k) (excluding the first row and column).at n=12A345473