a(n) = 3^n * [x^n] Product_{k>=1} (1 + 3*x^k)^(1/3).
A370712
a(n) = 3^n * [x^n] Product_{k>=1} (1 + 3*x^k)^(1/3).
Terms
- a(0) =1a(1) =3a(2) =0a(3) =99a(4) =-270a(5) =2430a(6) =-10287a(7) =105462a(8) =-750141a(9) =5702481a(10) =-42623901a(11) =347424633a(12) =-2779077762a(13) =22353287634a(14) =-181730796723
External references
- oeis: A370712