This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Multisets that contain different elements times.svg An illustration for the array that shows the number of possible permutations of these multisets These multisets have the signatures for and they correspond to the integer partitions denoted by these numbers The multisets in column for have signature For empty sets the concept