Expansion of e.g.f. (1 - 2*x - sqrt(1-4*x))^2 * (1 - sqrt(1-4*x))/8.
A052722
Expansion of e.g.f. (1 - 2*x - sqrt(1-4*x))^2 * (1 - sqrt(1-4*x))/8.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =120a(6) =3600a(7) =100800a(8) =3024000a(9) =99792000a(10) =3632428800a(11) =145297152000
External references
- oeis: A052722