87665

Appears in sequences

• a(n) = diagonal sum of left-justified array T given by A027052.at n=32A027069
• Triangle read by rows: T(n,k) = 2 * A011971(n,k) - 1.at n=49A136791
• Positive numbers y such that y^2 is of the form x^2+(x+89)^2 with integer x.at n=13A160055
• Expansion of x^7/(1-2*x-2*x^2+x^3+x^8).at n=12A172399
• Expansion of (1 / theta_4(x) - 1)^5 / 32.at n=8A341366