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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.

A057135 Palindromes whose square is a palindrome; also palindromes whose sum of squares of digits is less than 10.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 11
6 22
7 101
8 111
9 121
10 202
11 212
12 1001
13 1111
14 2002
15 10001
16 10101
17 10201
18 11011
19 11111
20 11211
21 20002
22 20102
23 100001
24 101101
25 110011
26 111111
27 200002
28 1000001
29 1001001
30 1002001
31 1010101
32 1011101
33 1012101
34 1100011
35 1101011
36 1102011
37 1110111
38 1111111

List of values

[0, 1, 2, 3, 11, 22, 101, 111, 121, 202, 212, 1001, 1111, 2002, 10001, 10101, 10201, 11011, 11111, 11211, 20002, 20102, 100001, 101101, 110011, 111111, 200002, 1000001, 1001001, 1002001, 1010101, 1011101, 1012101, 1100011, 1101011, 1102011, 1110111, 1111111]

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

Content is available under The OEIS End-User License Agreement.