31289
domain: N
Appears in sequences
- Number of partitions of 5n into 5 parts.at n=19A256225
- Number of partitions of 3n into at most 5 parts.at n=30A256525
- G.f.: Sum_{n>=0} (n+1)*(n+2)*(n+3)/3! * x^n * (1 + x^n)^n.at n=32A326004
- Irregular triangle read by rows: T(n,k) is the number of rooted binary normal unlabeled galled trees with n leaves and exactly k galls, 0 <= k <= floor((n-1)/2).at n=40A380306