33167domain: NAppears in sequencesMembers of 3-cycles of permutation A111273.at n=34A113701Maximally refined partitions into distinct parts (of any natural number) with n parts.at n=18A179817Number of 2 X 2 matrices with all terms in {-n,..,0,..,n} and (sum of terms) = determinant.at n=27A281194