Coefficient of x^n in the expansion of 1/( (1-x)^3 - x^3 )^n.
A370284
Coefficient of x^n in the expansion of 1/( (1-x)^3 - x^3 )^n.
Terms
- a(0) =1a(1) =3a(2) =21a(3) =168a(4) =1425a(5) =12483a(6) =111594a(7) =1011636a(8) =9264753a(9) =85510590a(10) =794087151a(11) =7410887718a(12) =69446624910a(13) =653019755430
External references
- oeis: A370284