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.

A168139 Squares whose sum and number of digits are also squares.

Table of values

n a(n)
1 0
2 1
3 4
4 9
5 1521
6 1681
7 2025
8 2304
9 2601
10 3364
11 3481
12 3600
13 4489
14 4624
15 5776
16 5929
17 7225
18 7396
19 8100
20 8836
21 9025
22 100000000
23 100020001
24 100040004
25 100060009
26 100080016
27 100100025
28 100200100
29 100220121
30 100240144
31 100260169
32 100400400

List of values

[0, 1, 4, 9, 1521, 1681, 2025, 2304, 2601, 3364, 3481, 3600, 4489, 4624, 5776, 5929, 7225, 7396, 8100, 8836, 9025, 100000000, 100020001, 100040004, 100060009, 100080016, 100100025, 100200100, 100220121, 100240144, 100260169, 100400400]