Coefficient of x^n in Product_{k>=1} ((1 + x^k) / (1 - x^k))^(k*n).
A270924
Coefficient of x^n in Product_{k>=1} ((1 + x^k) / (1 - x^k))^(k*n).
Terms
- a(0) =1a(1) =2a(2) =16a(3) =128a(4) =1056a(5) =8952a(6) =77200a(7) =673948a(8) =5937792a(9) =52689170a(10) =470210016a(11) =4215834328a(12) =37945215552a(13) =342650763392
External references
- oeis: A270924