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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.

A324909 Odd numbers k for which sigma(k^2) == 3 (mod 4).

Table of values

n a(n)
1 5
2 13
3 15
4 17
5 29
6 35
7 37
8 39
9 41
10 45
11 51
12 53
13 55
14 61
15 73
16 87
17 89
18 91
19 95
20 97
21 101
22 105
23 109
24 111
25 113
26 115
27 117
28 119
29 123
30 125
31 135
32 137
33 143
34 149
35 153
36 155
37 157
38 159
39 165
40 173
41 181
42 183
43 187
44 193
45 197
46 203
47 215
48 219
49 229
50 233
51 235
52 241
53 245
54 247
55 257
56 259
57 261
58 267
59 269
60 273
61 277
62 281
63 285
64 287
65 291
66 293
67 295
68 299
69 303
70 313

List of values

[5, 13, 15, 17, 29, 35, 37, 39, 41, 45, 51, 53, 55, 61, 73, 87, 89, 91, 95, 97, 101, 105, 109, 111, 113, 115, 117, 119, 123, 125, 135, 137, 143, 149, 153, 155, 157, 159, 165, 173, 181, 183, 187, 193, 197, 203, 215, 219, 229, 233, 235, 241, 245, 247, 257, 259, 261, 267, 269, 273, 277, 281, 285, 287, 291, 293, 295, 299, 303, 313]