Expansion of g^2/(1 - x^2*g), where g = 1+x*g^4 is the g.f. of A002293.
A389112
Expansion of g^2/(1 - x^2*g), where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =55a(4) =356a(5) =2489a(6) =18345a(7) =140254a(8) =1101902a(9) =8841325a(10) =72141354a(11) =596766853a(12) =4993199792a(13) =42183297986a(14) =359325919409
External references
- oeis: A389112