Expansion of (1/(1-2*x^2))*c(x/(1-2*x^2)), where c(x) is the g.f. of A000108.

A105865

Expansion of (1/(1-2*x^2))*c(x/(1-2*x^2)), where c(x) is the g.f. of A000108.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =9a(4) =30a(5) =94a(6) =328a(7) =1165a(8) =4294a(9) =16134a(10) =61752a(11) =239610a(12) =940716a(13) =3729324a(14) =14908176a(15) =60026109a(16) =243211206a(17) =990897478a(18) =4057013080a(19) =16683617326a(20) =68879236036a(21) =285388549188

External references