Expansion of e.g.f. (1 - 2*x*sqrt(1-4*x))*(1 - sqrt(1-4*x))/4.
A052719
Expansion of e.g.f. (1 - 2*x*sqrt(1-4*x))*(1 - sqrt(1-4*x))/4.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =6a(4) =72a(5) =1080a(6) =20160a(7) =453600a(8) =11975040a(9) =363242880a(10) =12454041600a(11) =476367091200
External references
- oeis: A052719