as much as it pains me to use a c style for.... 
my $n=7;
for my $a ( 1.. $n-1){
    for( my $b = 1; $b+$a <= $n; $b++){
        print $b, ',', $b+$a, ' ';
    }
    print "\n";
}

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In reply to Re: generating pyramid number sequence by duckyd
in thread generating pyramid number sequence by Anonymous Monk

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