1323652

Appears in sequences

• Stirling numbers of the second kind, S(n,6).at n=6A000770
• Stirling numbers of second kind S(2n,n).at n=6A007820
• Stirling numbers of second kind S2(12,n).at n=5A011561
• Number of palindromic structures using exactly six different symbols.at n=22A056475
• Number of palindromic structures using exactly six different symbols.at n=23A056475
• Number of primitive (aperiodic) palindromic structures using exactly six different symbols.at n=22A056485
• Number of periodic palindromic structures of length n using exactly six different symbols.at n=22A056512
• Number of primitive (period n) periodic palindromic structures using exactly six different symbols.at n=22A056523
• Stirling numbers of second kind S(n,n-6).at n=6A144969
• Triangle read by rows: T(n,k) = binomial(2*n,k)*Stirling2(2*n-k,n).at n=21A226703
• Triangle read by rows, a refinement of the central Stirling numbers of the first kind A187646, T(n, k) for n >= 0 and 0 <= k <= n.at n=21A293609
• Triangle read by rows, T(n, k) = Pochhammer(n, k) * Stirling2(2*n, k + n) for n >= 0 and 0 <= k <= n.at n=21A293926
• a(n) = Stirling2(n, ceiling(n/2)).at n=12A343278
• a(n) = Stirling2(n, floor(n/2)).at n=12A343279
• Even numbers in the triangle of Stirling numbers of the second kind (A008277).at n=21A348650
• Triangle read by rows. T(n, k) = |Stirling1(n, k)| * Stirling2(n + k, n) = A132393(n, k) * A048993(n + k, n).at n=27A354797
• Triangle read by rows. T(n, k) = Sum_{j=0..n}((-1)^(n-j)*binomial(n, j)*j^(n+k)) / n!.at n=27A354977
• Triangle read by rows: T(n,k) = binomial(n+1,k+1)*Stirling2(n+k,k).at n=27A369381