71922domain: NAppears in sequencesNumbers n such that n^2 + 1, (n+1)^2 + 1 and (n+2)^2 + 1 are divisible by a square.at n=11A218048Record values of A018799 (Smallest nonnegative integer m such that m! begins with n in base 10).at n=39A279089Number of unordered pairs of partitions of n with the same number of parts.at n=23A387259