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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.

A052205 a(n+1) is smallest palindromic prime containing exactly 3 more digits on each end than the previous term, with a(n) as a central substring.

Table of values

n a(n)
1 2
2 1022201
3 1051022201501
4 1241051022201501421
5 1071241051022201501421701
6 1051071241051022201501421701501
7 1091051071241051022201501421701501901
8 1351091051071241051022201501421701501901531

List of values

[2, 1022201, 1051022201501, 1241051022201501421, 1071241051022201501421701, 1051071241051022201501421701501, 1091051071241051022201501421701501901, 1351091051071241051022201501421701501901531]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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