a(n) equals the coefficient of x^n in Sum_{m>=0} (x^m + 3 + 1/x^m)^m for n >= 1.
A316593
a(n) equals the coefficient of x^n in Sum_{m>=0} (x^m + 3 + 1/x^m)^m for n >= 1.
Terms
- a(0) =1a(1) =6a(2) =30a(3) =145a(4) =685a(5) =3267a(6) =15533a(7) =74338a(8) =356284a(9) =1714020a(10) =8263596a(11) =39940398a(12) =193419915a(13) =938440188a(14) =4560542645a(15) =22196008209a(16) =108171753355a(17) =527816934216
External references
- oeis: A316593