Actually this looks more like set partitions than combinations to me. You are splitting up a set into smaller subsets, and order and size of subsets doesn't matter. There is some sample code for a set partition iterator in one of my nodes Re: Generator of integer partitionts of n for starters, and plenty of other places too, probably, if you super search with that term.

blokhead

In reply to Re: Permutation of groups by blokhead
in thread Permutation of groups by tomazos

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