Expansion of sin(x)*sin(tanh(x))/2.

A024284

Expansion of sin(x)*sin(tanh(x))/2.

Terms

    a(0) =0a(1) =1a(2) =-8a(3) =144a(4) =-4960a(5) =270592a(6) =-21137408a(7) =2224725888a(8) =-302627860480

External references