63987

Appears in sequences

• Stirling numbers of second kind, S(n,7).at n=4A000771
• Stirling numbers of the second kind S(n+4, n).at n=7A001298
• Triangle of Stirling numbers of the second kind, S2(n,k), n >= 1, 1 <= k <= n.at n=61A008277
• Stirling numbers of second kind S2(11,n).at n=6A011560
• Triangle read by rows: T(n,k) is the number of primitive (aperiodic) word structures of length n using exactly k different symbols.at n=61A137651
• a(n) = 529*n^2 - 2*n.at n=10A158364
• Number of set partitions of [n] where each subset is again partitioned into seven nonempty subsets.at n=11A327508
• a(n) = Sum_{k=1..n} binomial(n,k) * sigma(k) * sigma(n - k + 1), where sigma = A000203.at n=9A330088
• Triangle read by rows: T(m,n) (m >= n >= 1) = number of vertices formed by drawing the line segments connecting any two of the (m+1) X (n+1) lattice points in an m X n grid of squares and extending them to the boundary of the grid.at n=26A333284
• Odd numbers in the triangle of Stirling numbers of the second kind (A008277).at n=43A348649
• Triangle read by rows. T(n, k) = Sum_{j=0..n}((-1)^(n-j)*binomial(n, j)*j^(n+k)) / n!.at n=32A354977
• Array read by rows: T(n,k) for k <= min(n,10) is the number of digital types of length n with exactly k distinct decimal digits without common prime factors of a different digital type.at n=61A378154