311400

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 31.at n=17A031709
• a(n) = 961*n^2 + 2*n.at n=17A158413
• Expansion of e.g.f. exp(-1 + Product_{k>=1} (1 + x^k/k!)).at n=9A308336