O.g.f.: Sum_{n>=0} x^n*Product_{k=1..n} (k + x).
A237653
O.g.f.: Sum_{n>=0} x^n*Product_{k=1..n} (k + x).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =9a(4) =36a(5) =176a(6) =1030a(7) =7039a(8) =55098a(9) =486346a(10) =4780445a(11) =51787405a(12) =613045468a(13) =7873065045a(14) =109021348618
External references
- oeis: A237653