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.

A186990 Number of subsets of {1, 2, ..., n} containing n and having <=6 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
11 116
12 16
13 242
14 48
15 72
16 110
17 664
18 63
19 1228
20 177
21 353
22 239
23 2667
24 219
25 2155
26 599
27 1847
28 657
29 7665
30 219
31 11613
32 3047
33 3297
34 2209
35 4946
36 1057
37 24328
38 3902
39 6551
40 2564
41 40158
42 1410
43 55194
44 8308
45 9490

List of values

[1, 2, 4, 4, 12, 4, 28, 16, 32, 12, 116, 16, 242, 48, 72, 110, 664, 63, 1228, 177, 353, 239, 2667, 219, 2155, 599, 1847, 657, 7665, 219, 11613, 3047, 3297, 2209, 4946, 1057, 24328, 3902, 6551, 2564, 40158, 1410, 55194, 8308, 9490]