-3254

Appears in sequences

• Numerators of coefficients of expansion of arctan(x)^2 = x^2 - 2/3*x^4 + 23/45*x^6 - 44/105*x^8 + 563/1575*x^10 - 3254/10395*x^12 + ...at n=6A002428
• Coefficient of x^(-n) in expansion of continued fraction 0, x, x^2, x^3, x^4, ... .at n=50A049346
• Triangle of the numerators of coefficients c(n,k) = [x^k] P(n,x) of some polynomials P(n,x).at n=22A141904
• Expansion of 1 - x/(1 - x^3/(1 - x^5/(1 - x^7/(1 - x^9/(1 - ... - x^(2*k-1)/(1 - ...)))))), a continued fraction.at n=50A291874