“…In the considered example, according to formula (8), n=3, k=5, so the number of combinations is calculated: [1,1,1], [1,1,2], [1,1,3], [1,1,4], [1,1,5], [1,2,1], [1,2,2], [1,2,3], [1,2,4], [1,2,5], [1,3,1], [1,3,2], [1,3,3], [1,3,4], [1,3,5], [1,4,1], [1,4,2], [1,4,…”