Multisets

The size-k multisets drawn from (combinations with repetition).

WikipediaMultisetMathWorldMultisetWikidataQ864377nLabmultisetOEISA165257✓SageMathsage.combinat.combinat.number_of_unordered_tuples(S, k)mathlib4Sym (Fin n) k

Multisets(n, k)size- multisets over symbols

Domain: Combinatorial collections

Details

Count is , the number of combinations with repetition
Each element is a non-decreasing length- list

Examples

See also: KSubsets, Tuples