Expansion of (1/(1+4x-2x^2))*c(x/(1+4x-2x^2)), c(x) the g.f. of A000108.
A179648
Expansion of (1/(1+4x-2x^2))*c(x/(1+4x-2x^2)), c(x) the g.f. of A000108.
Terms
- a(0) =1a(1) =-3a(2) =12a(3) =-47a(4) =190a(5) =-778a(6) =3224a(7) =-13475a(8) =56710a(9) =-239986a(10) =1020200a(11) =-4353430a(12) =18636908a(13) =-80004388a(14) =344264624a(15) =-1484499811a(16) =6413133638a(17) =-27750688914a(18) =120258432264a(19) =-521833284514
External references
- oeis: A179648