333217domain: NAppears in sequencesa(n) = 4*n^4 - 3*n^2.at n=16A079414Values of x in x^2 - 289 = 2*y^2.at n=17A106527a(n) = 4*a(n-4) + 6*a(n-8) + 4*a(n-12) + a(n-16) for n>15, with the sixteen initial values as shown.at n=35A238188