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.

A067929 Numbers k that divide the alternating sum phi(1) - phi(2) + phi(3) - phi(4) + ... + ((-1)^(k+1))*phi(k).

Table of values

n a(n)
1 1
2 2
3 4
4 12
5 17
6 55
7 57
8 80
9 195
10 211
11 233
12 602
13 694
14 1319
15 2726
16 26312
17 71173
18 101457
19 145789
20 165710
21 299228
22 483888
23 718738
24 1757846
25 4206121
26 9518456
27 15505388
28 15885915
29 15929230
30 26445656
31 28665696
32 37875137
33 147389152
34 218849960
35 430031707
36 507418131

List of values

[1, 2, 4, 12, 17, 55, 57, 80, 195, 211, 233, 602, 694, 1319, 2726, 26312, 71173, 101457, 145789, 165710, 299228, 483888, 718738, 1757846, 4206121, 9518456, 15505388, 15885915, 15929230, 26445656, 28665696, 37875137, 147389152, 218849960, 430031707, 507418131]