E.g.f.: log(cosh(x)+arctan(x))=x-3/3!*x^3+12/4!*x^4-7/5!*x^5-168/6!*x^6...

A013188

E.g.f.: log(cosh(x)+arctan(x))=x-3/3!*x^3+12/4!*x^4-7/5!*x^5-168/6!*x^6...

Terms

    a(0) =0a(1) =1a(2) =0a(3) =-3a(4) =12a(5) =-7a(6) =-168a(7) =917a(8) =-1568a(9) =-7183a(10) =198400a(11) =-3803987a(12) =27605248a(13) =316369129a(14) =-8352339968a(15) =40892465221a(16) =772060278784

External references