193448101
domain: N
Appears in sequences
- Stirling numbers of second kind S(n,3).at n=19A000392
- Stirling numbers of second kind S2(19,n).at n=2A011568
- Number of primitive (aperiodic) word structures of length n which contain exactly three different symbols.at n=18A056279
- Number of periodic palindromic structures of length n using exactly three different symbols.at n=36A056509
- Number of primitive (period n) periodic palindromic structures using exactly three different symbols.at n=36A056519