E.g.f. cos(sin(x)) (even powers only).

A003709

E.g.f. cos(sin(x)) (even powers only).

Terms

    a(0) =1a(1) =-1a(2) =5a(3) =-37a(4) =457a(5) =-8169a(6) =188685a(7) =-5497741a(8) =197920145a(9) =-8541537105a(10) =432381471509

External references