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.

A067888 Numbers k such that tau(k+1) = tau(k-1) where tau(k) = A000005(k).

Table of values

n a(n)
1 4
2 6
3 7
4 9
5 12
6 18
7 19
8 30
9 34
10 41
11 42
12 51
13 55
14 56
15 60
16 72
17 86
18 92
19 94
20 102
21 103
22 108
23 124
24 129
25 137
26 138
27 142
28 144
29 150
30 153
31 160
32 180
33 183
34 184
35 185
36 186
37 192
38 198
39 199
40 202
41 204
42 214
43 216
44 218
45 220
46 228
47 231
48 236
49 240
50 243
51 244
52 247
53 248
54 249
55 266
56 270
57 282

List of values

[4, 6, 7, 9, 12, 18, 19, 30, 34, 41, 42, 51, 55, 56, 60, 72, 86, 92, 94, 102, 103, 108, 124, 129, 137, 138, 142, 144, 150, 153, 160, 180, 183, 184, 185, 186, 192, 198, 199, 202, 204, 214, 216, 218, 220, 228, 231, 236, 240, 243, 244, 247, 248, 249, 266, 270, 282]