It looks like those more knowledgeable than me have already set you on the right path but I too, struggle with recursion and coming up with permutations. I finally put together a small script in Perl to help with this and wrote about it here if you're interested.

Gratias tibi ago
Leudwinus

In reply to Re: Please help me understand this permutation sub? by Leudwinus
in thread Please help me understand this permutation sub? by mdunnbass

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