E.g.f.: Sum_{n>=0} x^n * (2 + x^n)^n * exp(3*x^(n+1)) / n!.
A259205
E.g.f.: Sum_{n>=0} x^n * (2 + x^n)^n * exp(3*x^(n+1)) / n!.
Terms
- a(0) =1a(1) =5a(2) =15a(3) =71a(4) =217a(5) =2075a(6) =5833a(7) =98075a(8) =604897a(9) =4102595a(10) =69158473a(11) =792527675a(12) =2734836337a(13) =113904191315
External references
- oeis: A259205