A097389 Numbers that appear in A097390.
1, 3, 4, 5, 6, 7, 8, 9, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25
Offset: 1
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.
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