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.

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A139704 Nearly palindromic numbers: non-palindromes that can be made palindromic by inserting an extra digit.

Original entry on oeis.org

10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 81, 82, 83, 84, 85
Offset: 1

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Author

Jono Henshaw (jjono(AT)hotmail.com), Apr 30 2008

Keywords

Comments

Digits may be inserted at the beginning, middle, or end. However, a zero may not be inserted at the beginning.
Differs from A043638: 110, 220, 330, 440, 550, 660, 770, 880, 990, 1100, 1110 etc. are in A043638 but not here. 1010, 1011, 1012, 1013 etc. are here but not in A043638. - R. J. Mathar, May 31 2008

Examples

			The first term 10 can be made palindromic by adding 1 to the end of it to form 101.

Crossrefs

Cf. A002113, A139705, A043638.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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