The interesting thing about "integers in increasing order of width when set in Helvetica" is that, in Helvetica, as in most fonts, the width of the ten digits is identical. (By width here I mean the escapement, not the actual glyph ink width). So all integers with the same number of digits have the same "width" in Helvetica. On Fri, Jul 6, 2018 at 8:01 PM Keith F. Lynch <kfl@keithlynch.net> wrote:

Today's XKCD comic is about OEIS. See xkcd.com/2016

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