G.f.: 1/(1-x) = Sum_{n>=0} a(n) * x^n * Product_{k=1..n} (1 - k*x)/(1 + k*x).
A208832
G.f.: 1/(1-x) = Sum_{n>=0} a(n) * x^n * Product_{k=1..n} (1 - k*x)/(1 + k*x).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =17a(4) =153a(5) =1961a(6) =33267a(7) =709937a(8) =18375001a(9) =561358441a(10) =19825203355a(11) =796240555449
External references
- oeis: A208832