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.

A341274 Composite numbers k that are divisible by (k mod sopfr(k))+floor(k/sopfr(k)), where sopfr = A001414.

Table of values

n a(n)
1 4
2 6
3 12
4 16
5 20
6 21
7 24
8 27
9 30
10 36
11 40
12 45
13 48
14 52
15 56
16 60
17 66
18 70
19 72
20 75
21 80
22 84
23 88
24 90
25 96
26 105
27 108
28 112
29 117
30 126
31 140
32 150
33 152
34 160
35 180
36 182
37 192
38 195
39 198
40 200
41 220
42 224
43 225
44 231
45 240
46 252
47 255
48 256
49 270
50 286
51 288
52 290
53 301
54 306
55 308
56 320
57 330
58 344
59 345
60 352
61 360
62 378
63 384
64 396
65 429

List of values

[4, 6, 12, 16, 20, 21, 24, 27, 30, 36, 40, 45, 48, 52, 56, 60, 66, 70, 72, 75, 80, 84, 88, 90, 96, 105, 108, 112, 117, 126, 140, 150, 152, 160, 180, 182, 192, 195, 198, 200, 220, 224, 225, 231, 240, 252, 255, 256, 270, 286, 288, 290, 301, 306, 308, 320, 330, 344, 345, 352, 360, 378, 384, 396, 429]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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