93670domain: NAppears in sequencesNumbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 18.at n=34A031696324n^2 + 2n.at n=16A158271a(n) = 1156*n^2 + 34.at n=9A158731Antidiagonal sums of the convolution array A213778.at n=36A213780