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.

A263720 Palindromic numbers such that the sum of the digits equals the number of divisors.

Table of values

n a(n)
1 1
2 2
3 11
4 22
5 101
6 202
7 444
8 525
9 828
10 1111
11 2222
12 4884
13 5445
14 5775
15 12321
16 13431
17 18081
18 21612
19 24642
20 26862
21 31213
22 44244
23 44844
24 51415
25 52425
26 56265
27 62426
28 80008
29 86868
30 89298
31 99099
32 135531
33 162261
34 198891
35 217712
36 237732
37 301103
38 343343
39 480084
40 486684
41 512215
42 521125

List of values

[1, 2, 11, 22, 101, 202, 444, 525, 828, 1111, 2222, 4884, 5445, 5775, 12321, 13431, 18081, 21612, 24642, 26862, 31213, 44244, 44844, 51415, 52425, 56265, 62426, 80008, 86868, 89298, 99099, 135531, 162261, 198891, 217712, 237732, 301103, 343343, 480084, 486684, 512215, 521125]

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

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