a(n) = [x^n] Product_{k>=1} (1 + n^(k-1)*x^k).
A340103
a(n) = [x^n] Product_{k>=1} (1 + n^(k-1)*x^k).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =12a(4) =80a(5) =875a(6) =10584a(7) =170471a(8) =2949120a(9) =63772920a(10) =1441000000a(11) =38818444632
External references
- oeis: A340103