Expansion of the exponential generating function (1/2)*(1 + 4*x)*(1 - (1 + 4*x)^(-3/2))/x.
A292221
Expansion of the exponential generating function (1/2)*(1 + 4*x)*(1 - (1 + 4*x)^(-3/2))/x.
Terms
- a(0) =3a(1) =-3a(2) =20a(3) =-210a(4) =3024a(5) =-55440a(6) =1235520a(7) =-32432400a(8) =980179200a(9) =-33522128640
External references
- oeis: A292221