940520349072domain: NAppears in sequencesNumbers j such that 8*(j^2) + 9 = k^2 for some positive number k.at n=16A106328a(0)=0, a(1)=18, a(2)=612; a(n) = 35*(a(n-1)-a(n-2))+a(n-3).at n=8A350984