Expansion of tan(sinh(x))/cos(x) (odd powers only).

A009684

Expansion of tan(sinh(x))/cos(x) (odd powers only).

Terms

    a(0) =1a(1) =6a(2) =92a(3) =2744a(4) =135568a(5) =10052064a(6) =1046433728a(7) =145777470848

External references