736410

Appears in sequences

• Triangle defined by g.f. A(x,y) = exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n*k, k^2) * y^k ), as read by rows.at n=48A228904
• a(n) = [x^n] Product_{k=1..n} (1 + (n - k + 1)*x^k).at n=16A303188