90090

Appears in sequences

• Coefficients of Legendre polynomials.at n=6A001801
• Coefficients of Legendre polynomials.at n=5A001802
• Number of nonseparable rooted toroidal maps with n + 3 edges and n + 1 vertices.at n=10A006408
• Triangle of coefficients of Legendre polynomials P_n (x).at n=33A008316
• Expansion of Product_{k>=1} (1 - x^k)^15.at n=31A010822
• Multinomial coefficient n!/([n/3]![(n+1)/3]![(n+2)/3]!).at n=13A022916
• a(n) = Sum_{k=0..n} (k+1)*T(n, n-k), where T is given by A008288.at n=11A026937
• a(n) = 5*(n+1)*binomial(n+4,5)/2.at n=10A027801
• a(n) = 143*(n+1)*binomial(n+4,13)/2.at n=2A027809
• a(n) = 3*(n+1)*binomial(n+5,6).at n=8A027811
• a(n) = 99*(n+1)*binomial(n+5,12).at n=2A027817
• Denominator of (1/n)*Sum_{k=0..n-1} 1/binomial(n-1,k) for n>0 else 1.at n=13A046879
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/6 of the elements are <= (n-1)/2.at n=25A047180
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/6 of the elements are <= (n-2)/2.at n=25A047191
• Triangle giving T(n,k) = number of (n,k) labeled rooted Greg trees (n >= 1, 0<=k<=n-1).at n=26A048160
• Partial sums of second pentagonal numbers with even index (A049453).at n=35A051895
• Number of labeled pure 2-complexes on n nodes (0-simplexes) with 5 2-simplexes and 8 1-simplexes.at n=10A054559
• n*(n-1)*(n-2)*(n-3)*(n-4)*(2*n-1)/72.at n=14A055504
• a(1)=1, a(2)=2; thereafter, a(n) is the smallest number m not yet in the sequence such that every prime that divides a(n-1) also divides m.at n=37A060735
• Coefficient triangle of certain polynomials N(4; m,x).at n=49A062264