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.

A324744 Number of maximal subsets of {1...n} containing no element whose prime indices all belong to the subset.

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 3
5 4
6 4
7 5
8 6
9 8
10 8
11 11
12 11
13 22
14 22
15 22
16 22
17 28
18 28
19 44
20 44
21 52
22 52
23 76
24 76
25 88
26 88
27 96
28 96
29 184
30 184
31 240
32 240
33 264
34 264
35 296
36 296
37 592
38 592
39 592
40 592
41 728
42 728
43 1456
44 1456
45 1456
46 1456
47 2912
48 2912
49 3168
50 3168
51 3168
52 3168
53 5568
54 5568
55 5568
56 5568

List of values

[1, 1, 2, 2, 3, 4, 4, 5, 6, 8, 8, 11, 11, 22, 22, 22, 22, 28, 28, 44, 44, 52, 52, 76, 76, 88, 88, 96, 96, 184, 184, 240, 240, 264, 264, 296, 296, 592, 592, 592, 592, 728, 728, 1456, 1456, 1456, 1456, 2912, 2912, 3168, 3168, 3168, 3168, 5568, 5568, 5568, 5568]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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