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.

A247123 Palindromes obtained after one iteration of Reverse and Add applied to the terms of A015976.

Original entry on oeis.org

2, 4, 6, 8, 11, 22, 33, 44, 55, 66, 77, 88, 99, 22, 33, 44, 55, 66, 77, 88, 99, 121, 33, 44, 55, 66, 77, 88, 99, 121, 44, 55, 66, 77, 88, 99, 121, 55, 66, 77, 88, 99, 121, 66, 77, 88, 99, 121, 77
Offset: 2

Views

Author

Morgan L. Owens, Nov 21 2014

Keywords

Crossrefs

Cf. A015976 (One iteration of Reverse and Add is needed to reach a palindrome).

Programs

  • Mathematica
    Select[(FromDigits[#] + FromDigits[Reverse[#]]) & /@ IntegerDigits[Range[1000]], IntegerDigits[#] == Reverse[IntegerDigits[#]] &]