Expansion of g^2/(1 - x^2*g^6), where g = 1+x*g^4 is the g.f. of A002293.
A391084
Expansion of g^2/(1 - x^2*g^6), where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =60a(4) =401a(5) =2864a(6) =21400a(7) =165220a(8) =1307620a(9) =10552302a(10) =86499898a(11) =718258092a(12) =6028798270a(13) =51069425360a(14) =436027711460
External references
- oeis: A391084