Expansion of e.g.f.: sech(sin(x)+log(x+1))=1-4/2!*x^2+6/3!*x^3+69/4!*x^4-330/5!*x^5...

A012898

Expansion of e.g.f.: sech(sin(x)+log(x+1))=1-4/2!*x^2+6/3!*x^3+69/4!*x^4-330/5!*x^5...

Terms

    a(0) =1a(1) =0a(2) =-4a(3) =6a(4) =69a(5) =-330a(6) =-2604a(7) =29757a(8) =143689a(9) =-3993444a(10) =-5337254a(11) =737504515a(12) =-2332694727a(13) =-175190250378

External references