E.g.f.: Sum_{n>=0} exp(n*x) * Product_{k=1..n} (exp(k*x) - 1).
A207214
E.g.f.: Sum_{n>=0} exp(n*x) * Product_{k=1..n} (exp(k*x) - 1).
Terms
- a(0) =1a(1) =1a(2) =7a(3) =85a(4) =1759a(5) =55621a(6) =2501407a(7) =151984645a(8) =12004046719
External references
- oeis: A207214