11259666950
domain: N
Appears in sequences
- Stirling numbers of the second kind, S(n,4).at n=15A000453
- Stirling numbers of second kind S2(19,n).at n=3A011568
- Number of primitive (aperiodic) word structures of length n which contain exactly four different symbols.at n=18A056280
- Number of periodic palindromic structures of length n using exactly four different symbols.at n=36A056510
- Number of primitive (period n) periodic palindromic structures using exactly four different symbols.at n=36A056521