Expansion of g/(1 + x^3*g^2), where g = 1+x*g^4 is the g.f. of A002293.
A391324
Expansion of g/(1 + x^3*g^2), where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =21a(4) =137a(5) =954a(6) =6994a(7) =53213a(8) =416373a(9) =3329569a(10) =27090831a(11) =223562019a(12) =1866713744a(13) =15742216041a(14) =133887231109
External references
- oeis: A391324