Expansion of Product_{k>=1} 1/(1 - x^k)^(k-phi(k)), where phi() is the Euler totient function (A000010).

A307705

Expansion of Product_{k>=1} 1/(1 - x^k)^(k-phi(k)), where phi() is the Euler totient function (A000010).

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =3a(5) =2a(6) =8a(7) =5a(8) =16a(9) =15a(10) =34a(11) =30a(12) =75a(13) =66a(14) =144a(15) =150a(16) =285a(17) =292a(18) =566a(19) =585a(20) =1062a(21) =1170a(22) =1988a(23) =2205a(24) =3729a(25) =4159a(26) =6755a(27) =7785a(28) =12214a(29) =14147

External references