27432

Appears in sequences

• Expansion of tan(tan(x))*exp(x).at n=8A009697
• Expansion of tan(tan(x))*sinh(x).at n=4A009699
• a(n) = (1/24)*n*(n + 5)*(n^2 + n + 6).at n=26A051743
• Number of trees with n nodes and 5 leaves.at n=20A055292
• Numbers k such that sigma (x) = k has exactly 12 solutions.at n=29A060676
• Triangular matrix, read by rows, that satisfies: T(n,k) = [T^3](n-1,k) when n>k>=0, with T(n,n) = (n+1).at n=33A102098
• Triangle, read by rows, where the antidiagonals are formed by interleaving the rows of triangle A102098 with the rows of its matrix square (A102920).at n=50A102916
• Numbers that have exactly seven prime factors counted with multiplicity (A046308) whose digit reversal is different and also has 7 prime factors (with multiplicity).at n=13A109027
• Positions of the incrementally largest terms in continued fraction for 2^(1/3).at n=10A181495
• Number of 4-step self-avoiding walks on an n X n square summed over all starting positions.at n=28A188149
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 267", based on the 5-celled von Neumann neighborhood.at n=28A280461
• Triangle T(n, k) read by rows: row n gives the coefficients of the numerator polynomials of the o.g.f. of the (n+1)-th diagonal of the Sheffer triangle A282629 (S2[3,1] generalized Stirling2), for n >= 0.at n=12A290316
• The Riordan square of the large Schröder numbers, triangle read by rows, T(n, k) for 0 <= k <= n.at n=31A321623