E.g.f.: cosh(exp(x)-sec(x))=1+1/2!*x^2+5/4!*x^4-20/5!*x^5+37/6!*x^6...

A013337

E.g.f.: cosh(exp(x)-sec(x))=1+1/2!*x^2+5/4!*x^4-20/5!*x^5+37/6!*x^6...

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =5a(5) =-20a(6) =37a(7) =-700a(8) =1017a(9) =-28584a(10) =83769a(11) =-1514040a(12) =9304605a(13) =-108745468a(14) =1172343421a(15) =-11027747380a(16) =169643707825

External references