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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.

A226165 Squarefree part of A077425(n) (numbers 4*k+1, k>=0, not a square).

Table of values

n a(n)
1 5
2 13
3 17
4 21
5 29
6 33
7 37
8 41
9 5
10 53
11 57
12 61
13 65
14 69
15 73
16 77
17 85
18 89
19 93
20 97
21 101
22 105
23 109
24 113
25 13
26 5
27 129
28 133
29 137
30 141
31 145
32 149
33 17
34 157
35 161
36 165
37 173
38 177
39 181
40 185
41 21
42 193
43 197
44 201
45 205
46 209
47 213
48 217
49 221
50 229
51 233
52 237
53 241
54 5
55 249
56 253
57 257
58 29

List of values

[5, 13, 17, 21, 29, 33, 37, 41, 5, 53, 57, 61, 65, 69, 73, 77, 85, 89, 93, 97, 101, 105, 109, 113, 13, 5, 129, 133, 137, 141, 145, 149, 17, 157, 161, 165, 173, 177, 181, 185, 21, 193, 197, 201, 205, 209, 213, 217, 221, 229, 233, 237, 241, 5, 249, 253, 257, 29]