a(n) = coefficient of x^(3*n)*y^n/n in Sum_{n>=1} -log(1 - (x^n + y^n)).
A322207
a(n) = coefficient of x^(3*n)*y^n/n in Sum_{n>=1} -log(1 - (x^n + y^n)).
Terms
- a(0) =1a(1) =9a(2) =58a(3) =473a(4) =3881a(5) =33786a(6) =296017a(7) =2630521a(8) =23535994a(9) =211922929a(10) =1917334794a(11) =17417202554a(12) =158753389913
External references
- oeis: A322207