1404960479domain: NAppears in sequencesNumbers k such that 2*k^2 + 14 is a square.at n=23A077446a(n) = 2*a(n-1) + a(n-2), with a(0)= -1, a(1)= 3.at n=24A135532All positive solutions x of the second class of the Pell equation x^2 - 2*y^2 = -7.at n=11A255236