42971

Appears in sequences

• Triangle, read by rows, where the k-th column equals the k-th self-composition of column 1 (A120567) for k>=0, such that row sums equal column 1.at n=58A120568
• G.f. A(x) satisfies: [x^(n-1)] (1+x)^(n*(n-1)) / A(x)^n = 0 for n>1.at n=6A303061
• The number of irreducible zero-sum subsets of T(n) = {-2*n+1, -2*n+3, ..., -3, -1, 1, 3, ..., 2*n-3, 2*n-1} that contain -2*n+1 but not 2*n-1.at n=20A390083