Or, if all the values of the partitions must be unique, maybe something like (untested): 

use Integer::Partition qw();
use List::MoreUtils qw(uniq);

my $i = Integer::Partition->new(6);

my $n = 5;

while (my $p = $i->next()) {
    do_whatever_with($p) if (@$p == $n) and (@$p == uniq @$p);
    }

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In reply to Re^4: How to restrict partitions by AnomalousMonk
in thread How to restrict partitions by crunch_this!

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