A137002 Numbers k such that k and k^2 use only the digits 1, 2 and 5.
1, 5, 11, 15
Offset: 1
Examples
15^2 = 225.
Links
- Jonathan Wellons, Tables of Shared Digits [archived]
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
15^2 = 225.
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