G.f.: Product_{n>=1} [ (1 - x^n) / (1 - (n+1)^n*x^n) ]^(1/n).
A205811
G.f.: Product_{n>=1} [ (1 - x^n) / (1 - (n+1)^n*x^n) ]^(1/n).
Terms
- a(0) =1a(1) =1a(2) =6a(3) =29a(4) =221a(5) =1897a(6) =23502a(7) =335334a(8) =5923570a(9) =119354491a(10) =2758647259a(11) =71079498533
External references
- oeis: A205811