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.

A039832 Numbers k such that k and k+1 both have 4 divisors.

Table of values

n a(n)
1 14
2 21
3 26
4 33
5 34
6 38
7 57
8 85
9 86
10 93
11 94
12 118
13 122
14 133
15 141
16 142
17 145
18 158
19 177
20 201
21 202
22 205
23 213
24 214
25 217
26 218
27 253
28 298
29 301
30 302
31 326
32 334
33 381
34 393
35 394
36 445
37 446
38 453
39 481
40 501
41 514
42 526
43 537
44 542
45 553
46 565
47 622
48 633
49 634
50 694
51 697
52 698
53 706
54 717
55 745
56 766
57 778
58 793
59 802
60 817

List of values

[14, 21, 26, 33, 34, 38, 57, 85, 86, 93, 94, 118, 122, 133, 141, 142, 145, 158, 177, 201, 202, 205, 213, 214, 217, 218, 253, 298, 301, 302, 326, 334, 381, 393, 394, 445, 446, 453, 481, 501, 514, 526, 537, 542, 553, 565, 622, 633, 634, 694, 697, 698, 706, 717, 745, 766, 778, 793, 802, 817]

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

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