125829domain: NAppears in sequencesDigitally balanced numbers in base 7: equal numbers of 0's, 1's, ..., 6's.at n=27A049358Nonnegative values x of solutions (x, y) to the Diophantine equation x^2 + (x + 31)^2 = y^2.at n=15A118674Numbers n such that the three numbers pi(n), pi(n^2), and pi(n^3) are prime.at n=26A233463