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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.

A066664 Composite numbers n whose divisors less than or equal to sqrt(n) are consecutive, from 1 up to some number k.

Table of values

n a(n)
1 4
2 6
3 8
4 10
5 12
6 14
7 18
8 22
9 24
10 26
11 34
12 38
13 46
14 58
15 60
16 62
17 74
18 82
19 86
20 94
21 106
22 118
23 122
24 134
25 142
26 146
27 158
28 166
29 178
30 194
31 202
32 206
33 214
34 218
35 226
36 254
37 262
38 274
39 278
40 298
41 302
42 314
43 326
44 334
45 346
46 358
47 362
48 382
49 386
50 394
51 398
52 422
53 446
54 454
55 458
56 466
57 478

List of values

[4, 6, 8, 10, 12, 14, 18, 22, 24, 26, 34, 38, 46, 58, 60, 62, 74, 82, 86, 94, 106, 118, 122, 134, 142, 146, 158, 166, 178, 194, 202, 206, 214, 218, 226, 254, 262, 274, 278, 298, 302, 314, 326, 334, 346, 358, 362, 382, 386, 394, 398, 422, 446, 454, 458, 466, 478]

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

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