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@nerd-san nice one. This of course only works for n > 0, so I suppose a validation function for n would have to be called before this line
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@corscheid what? Just put some negative number there. It just makes the number bigger a little bit, there's no restriction for "n".
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@KeyWeeUsr I seem to have confused myself. lol
$n = 2 * $n + 1; /* I can't even */
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