Expansion of e.g.f. Product_{k>=1} ((1 + x^k)/(1 - x^k))^(phi(k)/k), where phi is the Euler totient function A000010.
A318976
Expansion of e.g.f. Product_{k>=1} ((1 + x^k)/(1 - x^k))^(phi(k)/k), where phi is the Euler totient function A000010.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =32a(4) =196a(5) =1512a(6) =13384a(7) =135872a(8) =1545744a(9) =19441952a(10) =268386784a(11) =4018603008a(12) =65021744704
External references
- oeis: A318976