G.f. = 1-1/H(x) where H(x) = 1 + 2*x + 6*x^2 + 22*x^3 + 92*x^4 + 422*x^5 + 2074*x^6 + ... is a g.f. for the Baxter sequence A001181 with a different offset.

A342282

G.f. = 1-1/H(x) where H(x) = 1 + 2*x + 6*x^2 + 22*x^3 + 92*x^4 + 422*x^5 + 2074*x^6 + ... is a g.f. for the Baxter sequence A001181 with a different offset.

Terms

    a(0) =0a(1) =2a(2) =2a(3) =6a(4) =24a(5) =110a(6) =550a(7) =2922a(8) =16242a(9) =93520a(10) =553980a(11) =3359384a(12) =20777588a(13) =130696662a(14) =834244830a(15) =5393850898a(16) =35272830054a(17) =233016356788

External references