640584

Appears in sequences

• Expansion of cosh(tan(x).exp(x)).at n=9A009162
• Expansion of 1/(1 - x*(1 + x)/(1 - x^2*(1 + x^2)/(1 - x^3*(1 + x^3)/(1 - x^4*(1 + x^4)/(1 - ...))))), a continued fraction.at n=19A308745