396921

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 60.at n=20A031738
• a(n) = 441*n^2 + 21.at n=30A158603
• Constant term in the reduction of the polynomial x^(2*n) + x^n + 1 by x^3 -> x + 1. See Comments.at n=26A192812