388127domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(69).at n=9A041120Numerators of continued fraction convergents to sqrt(621).at n=7A042192a(n) = 25*a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 25.at n=4A090733a(n) = n^4 + 8*n^3 + 20*n^2 + 16*n + 2.at n=23A304725