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.

A028839 Sum of digits of n is a square.

Table of values

n a(n)
1 1
2 4
3 9
4 10
5 13
6 18
7 22
8 27
9 31
10 36
11 40
12 45
13 54
14 63
15 72
16 79
17 81
18 88
19 90
20 97
21 100
22 103
23 108
24 112
25 117
26 121
27 126
28 130
29 135
30 144
31 153
32 162
33 169
34 171
35 178
36 180
37 187
38 196
39 202
40 207
41 211
42 216
43 220
44 225
45 234
46 243
47 252
48 259
49 261
50 268
51 270
52 277
53 286
54 295
55 301
56 306
57 310

List of values

[1, 4, 9, 10, 13, 18, 22, 27, 31, 36, 40, 45, 54, 63, 72, 79, 81, 88, 90, 97, 100, 103, 108, 112, 117, 121, 126, 130, 135, 144, 153, 162, 169, 171, 178, 180, 187, 196, 202, 207, 211, 216, 220, 225, 234, 243, 252, 259, 261, 268, 270, 277, 286, 295, 301, 306, 310]