119120domain: NAppears in sequencesNumber of bipartite partitions of n white objects and 3 black ones.at n=26A000412Least numbers k > 1 such that k'' = n*k', where k' and k'' are the first and the second arithmetic derivatives of k.at n=9A287059Triangle read by rows: cumulative sums of the rows of A049430.at n=41A330891