Expansion of tan(x)*cos(sinh(x)).

A009728

Expansion of tan(x)*cos(sinh(x)).

Terms

    a(0) =1a(1) =-1a(2) =-19a(3) =-253a(4) =-5447a(5) =-225721a(6) =-14615899a(7) =-1266041845a(8) =-140130487823

External references