Expansion of Sum_{k>=0} (k * x * (1 + (k * x)^2))^k.
A360018
Expansion of Sum_{k>=0} (k * x * (1 + (k * x)^2))^k.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =28a(4) =288a(5) =3854a(6) =63104a(7) =1220729a(8) =27248128a(9) =689446671a(10) =19501121536a(11) =609753349945
External references
- oeis: A360018