Expansion of Product_{i>=1} (1 - x^i)^(-1/i); also of exp(Sum_{n>=1} (d(n)*x^n/n)) where d is number of divisors function.
A028342
Expansion of Product_{i>=1} (1 - x^i)^(-1/i); also of exp(Sum_{n>=1} (d(n)*x^n/n)) where d is number of divisors function.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =59a(5) =339a(6) =2629a(7) =20677a(8) =202089a(9) =2066201a(10) =24322931a(11) =296746251a(12) =4193572723a(13) =59806188571a(14) =954679763829
External references
- oeis: A028342