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.

A224703 Numbers divisible by the twice the number of their prime factors (counted with multiplicity), or numbers n divisible by 2*Omega(n).

Table of values

n a(n)
1 2
2 4
3 12
4 16
5 18
6 24
7 30
8 40
9 42
10 56
11 66
12 78
13 80
14 88
15 96
16 102
17 104
18 114
19 120
20 136
21 138
22 144
23 152
24 174
25 180
26 184
27 186
28 200
29 216
30 222
31 232
32 240
33 246
34 248
35 256
36 258
37 270
38 280
39 282
40 296
41 300
42 318
43 324
44 328
45 336
46 344
47 354
48 360
49 366
50 376
51 384
52 402
53 420
54 424
55 426

List of values

[2, 4, 12, 16, 18, 24, 30, 40, 42, 56, 66, 78, 80, 88, 96, 102, 104, 114, 120, 136, 138, 144, 152, 174, 180, 184, 186, 200, 216, 222, 232, 240, 246, 248, 256, 258, 270, 280, 282, 296, 300, 318, 324, 328, 336, 344, 354, 360, 366, 376, 384, 402, 420, 424, 426]

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

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