2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76162Simple formulas for the number of different cyclic and dihedral necklaces containing $n_j$ beads of the $j$-th color, $j\leq m$ and $\sum_{j=1}^mn_j=N$, are derived.3 pagesCombinatoricstext