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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.

A354220 a(n) is the record setting number of distinct prime factors in the product of the composite numbers between p = A354219(n) and the next prime after p.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 14
11 15
12 16
13 20
14 25
15 27
16 37
17 38
18 39
19 40
20 41
21 45
22 49
23 56
24 64
25 66
26 89
27 90
28 114
29 120
30 131
31 145
32 154
33 164
34 174
35 187
36 207
37 217
38 218
39 222
40 225
41 266
42 302
43 328
44 329
45 330
46 351
47 364
48 369
49 377
50 381
51 437
52 447
53 449
54 454
55 461
56 468
57 497
58 530
59 535
60 548
61 551

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 20, 25, 27, 37, 38, 39, 40, 41, 45, 49, 56, 64, 66, 89, 90, 114, 120, 131, 145, 154, 164, 174, 187, 207, 217, 218, 222, 225, 266, 302, 328, 329, 330, 351, 364, 369, 377, 381, 437, 447, 449, 454, 461, 468, 497, 530, 535, 548, 551]

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

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