61364domain: NAppears in sequencesa(n) = (1/C(n,0) + 1/C(n,1) + ... + 1/C(n,n))*L, where L = LCM{C(n,0), C(n,1),..., C(n,n)}.at n=12A025533Number of compositions of n such that the smallest part has multiplicity three.at n=17A241863