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.

A167886 n-th single or isolated number minus n-th non-single or nonisolated number.

Table of values

n a(n)
1 2
2 3
3 3
4 7
5 11
6 15
7 21
8 27
9 31
10 34
11 39
12 45
13 51
14 55
15 60
16 63
17 68
18 75
19 78
20 83
21 87
22 100
23 103
24 109
25 119
26 125
27 130
28 133
29 138
30 144
31 154
32 159
33 171
34 182
35 185
36 189
37 195
38 205
39 209
40 214
41 220
42 226
43 230
44 239
45 252
46 256
47 260
48 273
49 278
50 287
51 291
52 296
53 303
54 308
55 313
56 315
57 320
58 327

List of values

[2, 3, 3, 7, 11, 15, 21, 27, 31, 34, 39, 45, 51, 55, 60, 63, 68, 75, 78, 83, 87, 100, 103, 109, 119, 125, 130, 133, 138, 144, 154, 159, 171, 182, 185, 189, 195, 205, 209, 214, 220, 226, 230, 239, 252, 256, 260, 273, 278, 287, 291, 296, 303, 308, 313, 315, 320, 327]