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.

A273800 Numbers n for which n = phi(x)*phi(y), where n = x + y and phi(x) is the Euler totient function of x.

Table of values

n a(n)
1 8
2 12
3 16
4 24
5 32
6 36
7 48
8 96
9 128
10 160
11 192
12 288
13 768
14 1152
15 2048
16 2560
17 3072
18 27648
19 110592
20 192704
21 196608
22 202496
23 232448
24 370688
25 379904
26 394264
27 443512
28 466048
29 508672
30 524288
31 553120
32 571008
33 586016
34 607744
35 624704
36 650624
37 655360
38 675584
39 681856

List of values

[8, 12, 16, 24, 32, 36, 48, 96, 128, 160, 192, 288, 768, 1152, 2048, 2560, 3072, 27648, 110592, 192704, 196608, 202496, 232448, 370688, 379904, 394264, 443512, 466048, 508672, 524288, 553120, 571008, 586016, 607744, 624704, 650624, 655360, 675584, 681856]