211462domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(6).at n=10A041006Number of prime pairs below 10^n having a difference of 56.at n=8A093982Numbers k such that k and k^2 use only the digits 1, 2, 4, 6 and 7.at n=40A136993a(n) = sqrt(6*A138288(n)^2 - 2).at n=5A350965