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.

A083972 Smallest palindromic prime containing exactly n 1's.

Table of values

n a(n)
1 313
2 11
3 18181
4 11311
5 1311131
6 1114111
7 110111011
8 111181111
9 11115151111
10 1011117111101
11 1110111110111
12 1111118111111
13 111111212111111
14 111111151111111
15 11121111111112111
16 1011111110111111101
17 1111111611161111111
18 111110111171111011111
19 1111111111111111111
20 111111111161111111111
21 11111111181118111111111
22 1101111111119111111111011

List of values

[313, 11, 18181, 11311, 1311131, 1114111, 110111011, 111181111, 11115151111, 1011117111101, 1110111110111, 1111118111111, 111111212111111, 111111151111111, 11121111111112111, 1011111110111111101, 1111111611161111111, 111110111171111011111, 1111111111111111111, 111111111161111111111, 11111111181118111111111, 1101111111119111111111011]

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

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