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.

A222724 Palindromic nonprime numbers starting with a digit 1.

Table of values

n a(n)
1 1
2 111
3 121
4 141
5 161
6 171
7 1001
8 1111
9 1221
10 1331
11 1441
12 1551
13 1661
14 1771
15 1881
16 1991
17 10001
18 10101
19 10201
20 10401
21 10701
22 10801
23 10901
24 11011
25 11111
26 11211
27 11511
28 11611
29 11711
30 11811
31 11911
32 12021
33 12121
34 12221
35 12321
36 12521
37 12621
38 12921
39 13031
40 13131
41 13231

List of values

[1, 111, 121, 141, 161, 171, 1001, 1111, 1221, 1331, 1441, 1551, 1661, 1771, 1881, 1991, 10001, 10101, 10201, 10401, 10701, 10801, 10901, 11011, 11111, 11211, 11511, 11611, 11711, 11811, 11911, 12021, 12121, 12221, 12321, 12521, 12621, 12921, 13031, 13131, 13231]

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

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