Expansion of e.g.f. 3*x/(exp(-3*x)+exp(-x)+exp(x)).

A364112

Expansion of e.g.f. 3*x/(exp(-3*x)+exp(-x)+exp(x)).

Terms

    a(0) =0a(1) =1a(2) =2a(3) =-5a(4) =-28a(5) =85a(6) =806a(7) =-3185a(8) =-41656a(9) =207913a(10) =3428810a(11) =-20824925a(12) =-413027284a(13) =2961364861a(14) =68560259054a(15) =-567040692425

External references