Expansion of e.g.f.: exp(4*x/(1-x)) / sqrt(1-x^2).
A202827
Expansion of e.g.f.: exp(4*x/(1-x)) / sqrt(1-x^2).
Terms
- a(0) =1a(1) =4a(2) =25a(3) =196a(4) =1849a(5) =20164a(6) =249001a(7) =3422500a(8) =51739249a(9) =851822596a(10) =15155825881a(11) =289527934084
External references
- oeis: A202827