cp's OEIS Frontend

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.

A033056 Numbers whose base-5 representation Sum_{i=0..m} d(i)*5^i has odd d(m-i) for all odd i.

Original entry on oeis.org

1, 2, 3, 4, 6, 8, 11, 13, 16, 18, 21, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 44, 55, 56, 57, 58, 59, 65, 66, 67, 68, 69, 80, 81, 82, 83, 84, 90, 91, 92, 93, 94, 105, 106, 107, 108, 109, 115, 116, 117, 118, 119, 151, 153, 156, 158, 161
Offset: 1

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Disjoint with A032955 if more than 1 digit.

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NAME corrected. - R. J. Mathar, Jul 23 2025