204120

Appears in sequences

• Denominators of expansion of -W_{-1}(-e^{-1-x^2/2}) where W_{-1} is Lambert W function.at n=8A005446
• Square of lower triangular matrix of A056857 (successive equalities in set partitions of n).at n=48A078937
• a(1) = 3, a(n) = smallest multiple of a(n-1) such that 10*a(n) + 1 is prime.at n=10A089325
• Maximum number of odd 2 X 2 submatrices over all 2n X 2n (0,1) matrices.at n=17A093699
• Triangle read by rows: T(n,h)/(n-1), where T is the array in A101819.at n=24A101820
• Fourth column of PE^2.at n=9A129325
• Triangle read by rows: a(1,1)=1. a(m,n) = a(m-1,n) + (sum of all terms in row m-1), for n<m. a(m,m) = sum of all terms in row m-1.at n=42A159930
• Coefficients of expansion polynomials related to fish weight allometric equation: p(x,t)=-Exp[t*x]*(1 - Exp[t/3])^3.at n=19A171506
• Number of 0..n arrays x(0..3) of 4 elements with each no smaller than the sum of its previous elements modulo (n+1).at n=33A200253
• Number of (w,x,y,z) with all terms in {1,...,n} and w<2x and y>=3z.at n=36A212511
• Number of (w,x,y,z) with all terms in {0,...,n} and w, x, and y even.at n=34A212759
• Partial products of A024816; a(1) = a(2) = 1.at n=7A280982
• Triangle read by rows: T(n,m) (1<=m<=n) = number of surjections f:[n]->[m] with f(n) != f(j), j<n.at n=40A380977