350154domain: NAppears in sequencesA generalized partition function.at n=38A002598Generating function: 1/((1-x)*(1-x^2)^2*(1-x^3)^3*(1-x^4)^4).at n=39A064349Numbers m such that k*phi(n) = Sum_{j|n} sigma(j), where k >= 1 is an integer.at n=29A243373