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.

A346465 Numbers k such that (4^k - 2)*(4^k - 1)/Clausen(2*k, 1) is not squarefree, where Clausen(n, m) = A160014(n, m).

Table of values

n a(n)
1 9
2 11
3 18
4 27
5 32
6 36
7 45
8 50
9 53
10 54
11 63
12 68
13 72
14 74
15 78
16 81
17 90
18 95
19 99
20 100
21 108
22 116
23 117
24 126
25 127
26 135
27 137
28 144
29 147
30 150
31 153
32 155
33 158
34 162
35 171
36 179
37 180
38 182
39 189
40 198
41 200
42 204
43 207
44 216
45 221
46 225
47 233
48 234
49 242
50 243
51 250
52 252
53 261
54 263
55 270
56 279

List of values

[9, 11, 18, 27, 32, 36, 45, 50, 53, 54, 63, 68, 72, 74, 78, 81, 90, 95, 99, 100, 108, 116, 117, 126, 127, 135, 137, 144, 147, 150, 153, 155, 158, 162, 171, 179, 180, 182, 189, 198, 200, 204, 207, 216, 221, 225, 233, 234, 242, 243, 250, 252, 261, 263, 270, 279]

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

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