3395598337domain: NAppears in sequencesa(n) = 6*a(n-1) + a(n-2) for n > 1, with a(0) = a(1) = 1.at n=13A015451Numbers m such that 10*m^2 + 6 is a square.at n=12A221874Denominators of continued fraction convergents to sqrt(10)/2 = sqrt(5/2) = A020797 + 1.at n=37A295334