4826822domain: NAppears in sequencesSum of two powers of 13.at n=22A072390a(n) = n^6 + n.at n=13A131472Coefficients in q-expansion of (E_4^2 - E_2*E_6)/1008, where E_2, E_4, E_6 are the Eisenstein series shown in A006352, A004009, A013973, respectively.at n=13A282050