Numerator of [x^n] in the Taylor series arccosh(exp(x) - tan(x)) = x - x^2/6 - x^3/72 - 43*x^4/432 - 221*x^5/10368 - 89513*x^6/2177280 - ...

A013307

Numerator of [x^n] in the Taylor series arccosh(exp(x) - tan(x)) = x - x^2/6 - x^3/72 - 43*x^4/432 - 221*x^5/10368 - 89513*x^6/2177280 - ...

Terms

    a(0) =1a(1) =-1a(2) =-1a(3) =-43a(4) =-221a(5) =-89513a(6) =-149749a(7) =-1084711a(8) =-209435a(9) =-27633784271

External references