97368domain: NAppears in sequencesNumbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 26.at n=23A031704a(n) = 676*n^2 + 2*n.at n=11A158385a(n) = 576*n^2 + 24.at n=13A158637a(n) = 169*n^2 + n.at n=23A173275