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.

A227270 Numbers m such that Sum_{i= 1..k} 1/d(i) + Product_{i= 1..k} 1/d(i) = 1, where d(i) are the k prime distinct divisors of m.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 8
6 12
7 16
8 18
9 24
10 32
11 36
12 42
13 48
14 54
15 64
16 72
17 84
18 96
19 108
20 126
21 128
22 144
23 162
24 168
25 192
26 216
27 252
28 256
29 288
30 294
31 324
32 336
33 378
34 384
35 432
36 486
37 504
38 512
39 576
40 588
41 648
42 672
43 756
44 768
45 864
46 882
47 972
48 1008
49 1024
50 1134
51 1152
52 1176
53 1296
54 1344
55 1458

List of values

[1, 2, 4, 6, 8, 12, 16, 18, 24, 32, 36, 42, 48, 54, 64, 72, 84, 96, 108, 126, 128, 144, 162, 168, 192, 216, 252, 256, 288, 294, 324, 336, 378, 384, 432, 486, 504, 512, 576, 588, 648, 672, 756, 768, 864, 882, 972, 1008, 1024, 1134, 1152, 1176, 1296, 1344, 1458]