G.f.: Sum_{n>=0} (1 + (1+x)^n)^n / 3^(n+1).
A301307
G.f.: Sum_{n>=0} (1 + (1+x)^n)^n / 3^(n+1).
Terms
- a(0) =1a(1) =5a(2) =98a(3) =3239a(4) =150176a(5) =8958473a(6) =653364947a(7) =56325265925
External references
- oeis: A301307
A301307
G.f.: Sum_{n>=0} (1 + (1+x)^n)^n / 3^(n+1).