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.

A374181 Numbers k such that K(7 / k) != K((-1)^floor(k/2)*k / 7), where K(a/b) is the Kronecker symbol. Row 2 of A374188.

Table of values

n a(n)
1 2
2 10
3 12
4 18
5 24
6 26
7 34
8 44
9 48
10 50
11 58
12 60
13 66
14 74
15 76
16 82
17 88
18 90
19 92
20 96
21 106
22 108
23 114
24 120
25 122
26 124
27 130
28 138
29 146
30 152
31 156
32 162
33 170
34 172
35 176
36 178
37 184
38 186
39 188
40 192
41 194
42 202
43 204
44 216
45 218
46 220
47 226
48 234
49 236
50 240
51 242
52 248
53 250
54 258
55 268
56 274

List of values

[2, 10, 12, 18, 24, 26, 34, 44, 48, 50, 58, 60, 66, 74, 76, 82, 88, 90, 92, 96, 106, 108, 114, 120, 122, 124, 130, 138, 146, 152, 156, 162, 170, 172, 176, 178, 184, 186, 188, 192, 194, 202, 204, 216, 218, 220, 226, 234, 236, 240, 242, 248, 250, 258, 268, 274]

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

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