What if

1, 11, 111, 1111, 11111, ....

is meant to be a sequence of numbers?

use POSIX;
my $number = 1;
while ($number <= POSIX::ULONG_MAX) {
    print "$number, ";
    $number *= 10;
    $number++;
}
print '...';

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In reply to Numerically generate the perl sequence 1, 11, 111, .... by Narveson
in thread Generate the perl sequence 1, 11, 111, .... by alih110

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