31874domain: NAppears in sequencesa(n) = number of ways the set {1,2,...,n} can be split into proper subsets with equal sums.at n=18A112956Composite numbers n such that sigma(n) - reversal(n) = 1.at n=1A230020Sequence of distinct least nonnegative numbers such that the average of the first n terms is a cube.at n=33A245621