Expansion of Sum_{k>=0} (x * (1 + k^2 * x))^k.
A360684
Expansion of Sum_{k>=0} (x * (1 + k^2 * x))^k.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =9a(4) =44a(5) =308a(6) =2391a(7) =22851a(8) =241570a(9) =2937179a(10) =39192998a(11) =579482352a(12) =9328260061a(13) =162563246381
External references
- oeis: A360684