129230640
domain: N
Appears in sequences
- Differences of 0: 6!*Stirling2(n,6).at n=10A000920
- a(n) = n^2*(n+1)*(3*n^2 + 7*n - 2)*(n+5)!/11520.at n=6A037963
- Number of primitive (aperiodic) words of length n which contain exactly six different symbols.at n=10A056271
- Palindromes using exactly six different symbols.at n=20A056457
- Palindromes using exactly six different symbols.at n=21A056457
- Number of primitive (aperiodic) palindromes using exactly six different symbols.at n=20A056467
- Number of periodic palindromes using exactly six different symbols.at n=20A056492
- Number of primitive (period n) periodic palindromes using exactly six different symbols.at n=20A056502
- Central terms of triangles A019538 and A090582.at n=5A233734