55858
domain: N
Appears in sequences
- Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k LDU's (n >= 0; 0 <= k <= floor((n-1)/3) for n >= 1).at n=19A128735
- a(n) = 2*(n^3 + n^2 + n - 1).at n=30A155120
- Principal diagonal of the convolution array A213555.at n=10A213556
- Numbers k with digits 5 and 8 only.at n=35A284381
- Number of compositions of n if only the order of parts 1 and 2 matters.at n=22A289249
- Number of integer partitions of n such that the dual of the multiset partition obtained by factoring each part into prime numbers is a (strict) antichain, also called T_1 integer partitions.at n=45A326977