E.g.f.: Sum_{n>=0} x^n * exp(n*(n+1)/2*x).
A193467
E.g.f.: Sum_{n>=0} x^n * exp(n*(n+1)/2*x).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =27a(4) =280a(5) =4025a(6) =75876a(7) =1800253a(8) =52193408a(9) =1807302897a(10) =73406128420
External references
- oeis: A193467