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.

A281685 Numbers k such that A001221(k) = A001221(A003415(k)).

Table of values

n a(n)
1 4
2 16
3 18
4 20
5 21
6 24
7 26
8 27
9 33
10 35
11 38
12 40
13 44
14 45
15 48
16 50
17 51
18 52
19 56
20 57
21 62
22 63
23 65
24 68
25 69
26 74
27 75
28 76
29 77
30 80
31 85
32 86
33 91
34 92
35 93
36 95
37 96
38 98
39 99
40 104
41 106
42 108
43 111
44 115
45 117
46 119
47 122
48 123
49 126
50 129
51 133
52 134
53 135
54 136
55 141
56 143
57 144
58 145
59 146
60 147

List of values

[4, 16, 18, 20, 21, 24, 26, 27, 33, 35, 38, 40, 44, 45, 48, 50, 51, 52, 56, 57, 62, 63, 65, 68, 69, 74, 75, 76, 77, 80, 85, 86, 91, 92, 93, 95, 96, 98, 99, 104, 106, 108, 111, 115, 117, 119, 122, 123, 126, 129, 133, 134, 135, 136, 141, 143, 144, 145, 146, 147]