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.

A087077 Total number of elements in all primitive subsets of the integers 1 to n.

Table of values

n a(n)
0 0
1 1
2 2
3 5
4 8
5 21
6 29
7 73
8 105
9 193
10 288
11 677
12 853
13 1957
14 2961
15 4913
16 6809
17 15145
18 19605
19 43105
20 57889
21 98849
22 151457
23 327505
24 397825
25 784945
26 1201189
27 2009229
28 2772729
29 5901185
30 7364945
31 15609825
32 21206049
33 36440033
34 55602033
35 105010513
36 127336513
37 267374561

List of values

[0, 1, 2, 5, 8, 21, 29, 73, 105, 193, 288, 677, 853, 1957, 2961, 4913, 6809, 15145, 19605, 43105, 57889, 98849, 151457, 327505, 397825, 784945, 1201189, 2009229, 2772729, 5901185, 7364945, 15609825, 21206049, 36440033, 55602033, 105010513, 127336513, 267374561]