52670
domain: N
Appears in sequences
- Triangle T(n,k) (0 <= k <= n) giving number of chains of length k in partially ordered set formed from subsets of n-set by inclusion.at n=38A038719
- k=2 column of A038719.at n=6A038721
- Squarefree numbers k with largest prime factor = floor(sqrt(k)).at n=35A071311
- a(n) = (9*n+4)*(9*n+5).at n=25A177073
- Second differences of eighth powers (A001016).at n=3A255178
- The number of overpartitions of n with restricted odd differences and smallest part both odd and overlined.at n=36A261037