a(n) = [x^n] Product_{k>=1} (1 + n*x^k) / (1 - n*x^k).
A292419
a(n) = [x^n] Product_{k>=1} (1 + n*x^k) / (1 - n*x^k).
Terms
- a(0) =1a(1) =2a(2) =12a(3) =96a(4) =872a(5) =9960a(6) =138180a(7) =2298016a(8) =44686224a(9) =995739498a(10) =24993249820a(11) =697309946784
External references
- oeis: A292419