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.

A084983 Palindromes made of only prime digits.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 22
6 33
7 55
8 77
9 222
10 232
11 252
12 272
13 323
14 333
15 353
16 373
17 525
18 535
19 555
20 575
21 727
22 737
23 757
24 777
25 2222
26 2332
27 2552
28 2772
29 3223
30 3333
31 3553
32 3773
33 5225
34 5335
35 5555
36 5775
37 7227
38 7337
39 7557
40 7777
41 22222
42 22322
43 22522
44 22722
45 23232
46 23332
47 23532
48 23732
49 25252
50 25352

List of values

[2, 3, 5, 7, 22, 33, 55, 77, 222, 232, 252, 272, 323, 333, 353, 373, 525, 535, 555, 575, 727, 737, 757, 777, 2222, 2332, 2552, 2772, 3223, 3333, 3553, 3773, 5225, 5335, 5555, 5775, 7227, 7337, 7557, 7777, 22222, 22322, 22522, 22722, 23232, 23332, 23532, 23732, 25252, 25352]