Expansion of g^2/(1 + x*g^2), where g = 1+x*g^4 is the g.f. of A002293.
A391379
Expansion of g^2/(1 + x*g^2), where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =35a(4) =232a(5) =1646a(6) =12239a(7) =94137a(8) =742825a(9) =5980056a(10) =48922556a(11) =405553786a(12) =3399234751a(13) =28759383055a(14) =245284421794
External references
- oeis: A391379