21416906117domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(7).at n=34A041008Numerators of continued fraction convergents to sqrt(28).at n=16A041044x-values in the solution to x^2 - 7*y^2 = -3.at n=17A202637a(n) = sqrt(28*A296377(n)^2 - 3).at n=8A350966