E.g.f.: (1 + 15*x + (45/2)*x^2 + (5/2)*x^3)/(1 - 2*x)^(13/2).

A038121

E.g.f.: (1 + 15*x + (45/2)*x^2 + (5/2)*x^3)/(1 - 2*x)^(13/2).

Terms

    a(0) =1a(1) =28a(2) =630a(3) =13860a(4) =315315a(5) =7567560a(6) =192972780a(7) =5237832600a(8) =151242416325

External references