Expansion of e.g.f. (1 + 2*x) * exp(x) / (sec(x) + tan(x)).

A337444

Expansion of e.g.f. (1 + 2*x) * exp(x) / (sec(x) + tan(x)).

Terms

    a(0) =1a(1) =2a(2) =0a(3) =-1a(4) =-8a(5) =-5a(6) =-50a(7) =79a(8) =-696a(9) =3375a(10) =-22830a(11) =156719a(12) =-1205244a(13) =9952735a(14) =-88770370a(15) =847488719a(16) =-8633147152a(17) =93430030975

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