Expansion of e.g.f. (1 + 4*x - sqrt(1-8*x))/8.
A052712
Expansion of e.g.f. (1 + 4*x - sqrt(1-8*x))/8.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =24a(4) =480a(5) =13440a(6) =483840a(7) =21288960a(8) =1107025920a(9) =66421555200
External references
- oeis: A052712