245616

Appears in sequences

• Triangle of coefficients of q in e.g.f. that satisfies: A(x,q) = exp( q*x*A(q*x,q) ), read by rows of [n*(n-1)/2 + 1] terms in row n for n>=0.at n=72A126265
• Convolution of nonzero heptagonal numbers (A000566) with themselves.at n=15A272103