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.

A066359 Nonsquarefree numbers n such that phi(n) = phi(n-2)-phi(n-1), where phi is Euler's totient function.

Table of values

n a(n)
1 46795
2 78183
3 112995
4 1986975
5 2411175
6 2689695
7 2744145
8 3619071
9 3712545
10 4738185
11 8184715
12 12176109
13 13342959
14 26400843
15 33789015
16 40425645
17 61114185
18 78464475
19 83333565
20 167077575
21 212066541
22 248682015
23 326834725
24 336828205
25 353707705
26 391078425
27 880254585

List of values

[46795, 78183, 112995, 1986975, 2411175, 2689695, 2744145, 3619071, 3712545, 4738185, 8184715, 12176109, 13342959, 26400843, 33789015, 40425645, 61114185, 78464475, 83333565, 167077575, 212066541, 248682015, 326834725, 336828205, 353707705, 391078425, 880254585]