260641

Appears in sequences

• Numerators of continued fraction convergents to sqrt(905).at n=3A042748
• a(n) = 648*n^2 + 72*n + 1.at n=19A154515
• a(n) = 10368*n^2 + 288*n + 1.at n=4A157326
• a(n) = Sum_{1 <= x_1, x_2, x_3, x_4 <= n} gcd(x_1, x_2, x_3, x_4, n)^4.at n=18A372931