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.

A190789 Numbers n such that omega(n-1) + omega(n+1) = omega(n) where omega(n) = A001221(n).

Table of values

n a(n)
1 2
2 6
3 10
4 12
5 18
6 24
7 26
8 28
9 48
10 66
11 70
12 72
13 78
14 80
15 82
16 84
17 90
18 108
19 110
20 114
21 120
22 130
23 132
24 140
25 156
26 170
27 174
28 182
29 190
30 192
31 222
32 234
33 238
34 242
35 252
36 255
37 258
38 264
39 276
40 280
41 290
42 294
43 306
44 308
45 310
46 318
47 336
48 342
49 350
50 354
51 366
52 372
53 374
54 378
55 380
56 396
57 402
58 408
59 410
60 418

List of values

[2, 6, 10, 12, 18, 24, 26, 28, 48, 66, 70, 72, 78, 80, 82, 84, 90, 108, 110, 114, 120, 130, 132, 140, 156, 170, 174, 182, 190, 192, 222, 234, 238, 242, 252, 255, 258, 264, 276, 280, 290, 294, 306, 308, 310, 318, 336, 342, 350, 354, 366, 372, 374, 378, 380, 396, 402, 408, 410, 418]

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

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