659232domain: NAppears in sequencesTheta series of direct sum of 2 copies of D_4 lattice in powers of q^2.at n=20A008658Number of Cayley graphs on n nodes.at n=31A185959If n=0 then 1 otherwise 48*(1+12*A318935(n))*(sum of cubes of odd divisors of n).at n=10A318939