Heaven help whoever call gen_seqs(0).

Why do you need both @seqs_0 and @seqs_1? They'll both hold the same thing, and you're dealing with them destructively. Unless I'm missing something, I'd think you could do 

my @subseq = gen_seqs($n-1);
unshift @$seq, 0 foreach @subseq;
unshift @$seq, 1 foreach @subseq;
push @seqs, @subseq, @subseq;

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In reply to Re: Generate all (0,1)-sequences in lexicographic order by dws
in thread Generate all (0,1)-sequences in lexicographic order by FoxtrotUniform

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