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.

A354714 Nonprime numbers k such that the number of divisors of k divides k+1.

Table of values

n a(n)
1 1
2 15
3 27
4 35
5 39
6 51
7 55
8 87
9 91
10 95
11 111
12 115
13 119
14 123
15 135
16 143
17 155
18 159
19 183
20 187
21 203
22 215
23 219
24 231
25 235
26 245
27 247
28 255
29 259
30 267
31 275
32 287
33 291
34 295
35 299
36 303
37 319
38 323
39 327
40 335
41 339
42 343
43 351
44 355
45 371
46 375
47 391
48 395
49 399
50 403
51 407
52 411
53 415
54 425
55 427
56 447
57 451
58 455
59 471
60 511
61 515

List of values

[1, 15, 27, 35, 39, 51, 55, 87, 91, 95, 111, 115, 119, 123, 135, 143, 155, 159, 183, 187, 203, 215, 219, 231, 235, 245, 247, 255, 259, 267, 275, 287, 291, 295, 299, 303, 319, 323, 327, 335, 339, 343, 351, 355, 371, 375, 391, 395, 399, 403, 407, 411, 415, 425, 427, 447, 451, 455, 471, 511, 515]

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

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