Expansion of Sum_{k>=0} (2*k - 1)!!*x^k/Product_{j=1..k} (1 - j*x).
A305404
Expansion of Sum_{k>=0} (2*k - 1)!!*x^k/Product_{j=1..k} (1 - j*x).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =25a(4) =217a(5) =2416a(6) =32839a(7) =527185a(8) =9761602a(9) =204800551a(10) =4801461049a(11) =124402647370
External references
- oeis: A305404