Penholodigital squares: Difference between revisions
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'''''penholodigital''': Nearly-all-digits.''</div>
So, in a particular base, a penholodigital square number will contain all of the digits used in that base (except zero) once, and only once. Base eight penholodigitals contain the
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;Stretch
Find and display the total count, and the first and last penholodigital squares and the integers that are squared to produce them, represented in the base in which they are calculated, for bases 13, 14, 15, ... ?
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