125054domain: NAppears in sequencesIntegers expressible as x^3 + 2*y^3 (x, y > 0) in two ways.at n=27A219725Numbers k such that s(k) = s(k+1) but phi(k) != phi(k+1), where s(k) = phi(k) + phi(phi(k)) + ... + 1 is the sum of iterated phi (A092693).at n=26A291177