123708domain: NAppears in sequencesTheta series of A*_12 lattice.at n=44A023924a(n) = 4*n*(21*n - 26).at n=39A263229Nonsquare positive integers k such that k = a*b = c*m + b and b^2 = a*m + c where m > 1, 0 < a, b, c < m.at n=8A347168