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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.

A076251 Numbers m such that omega(m) = omega(m-1) + omega(m-2), where omega(m) is the number of distinct prime factors of m.

Table of values

n a(n)
1 3
2 6
3 10
4 18
5 30
6 33
7 42
8 60
9 66
10 84
11 90
12 102
13 105
14 110
15 114
16 126
17 129
18 130
19 138
20 150
21 165
22 168
23 174
24 180
25 195
26 198
27 210
28 228
29 234
30 252
31 264
32 270
33 273
34 285
35 290
36 294
37 315
38 318
39 330
40 345
41 348
42 354
43 360
44 385
45 399
46 402
47 420
48 434
49 450
50 462
51 465
52 468
53 480
54 504

List of values

[3, 6, 10, 18, 30, 33, 42, 60, 66, 84, 90, 102, 105, 110, 114, 126, 129, 130, 138, 150, 165, 168, 174, 180, 195, 198, 210, 228, 234, 252, 264, 270, 273, 285, 290, 294, 315, 318, 330, 345, 348, 354, 360, 385, 399, 402, 420, 434, 450, 462, 465, 468, 480, 504]

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

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