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.

A186989 Number of subsets of {1, 2, ..., n} containing n and having <=5 pairwise coprime elements.

Table of values

n a(n)
1 1
2 2
3 4
4 4
5 12
6 4
7 28
8 16
9 32
10 12
11 110
12 16
13 209
14 46
15 69
16 98
17 507
18 57
19 828
20 141
21 277
22 193
23 1591
24 163
25 1289
26 413
27 1101
28 441
29 3785
30 163
31 5164
32 1479
33 1736
34 1187
35 2540
36 609
37 9561
38 1879
39 3086
40 1304
41 14298
42 738
43 18084
44 3322
45 3913
46 3888
47 25430

List of values

[1, 2, 4, 4, 12, 4, 28, 16, 32, 12, 110, 16, 209, 46, 69, 98, 507, 57, 828, 141, 277, 193, 1591, 163, 1289, 413, 1101, 441, 3785, 163, 5164, 1479, 1736, 1187, 2540, 609, 9561, 1879, 3086, 1304, 14298, 738, 18084, 3322, 3913, 3888, 25430]