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.

A117101 Numbers k such that nextprime(5*k) > 5*nextprime(k) and k is composite.

Table of values

n a(n)
1 18
2 28
3 40
4 60
5 72
6 78
7 82
8 96
9 102
10 105
11 106
12 155
13 156
14 166
15 178
16 180
17 192
18 222
19 226
20 228
21 250
22 262
23 266
24 267
25 268
26 270
27 280
28 282
29 292
30 312
31 328
32 329
33 330
34 334
35 335
36 336
37 352
38 358
39 378
40 387
41 388
42 396
43 408
44 418
45 420
46 436
47 437
48 438
49 460
50 485
51 486
52 490
53 496
54 497

List of values

[18, 28, 40, 60, 72, 78, 82, 96, 102, 105, 106, 155, 156, 166, 178, 180, 192, 222, 226, 228, 250, 262, 266, 267, 268, 270, 280, 282, 292, 312, 328, 329, 330, 334, 335, 336, 352, 358, 378, 387, 388, 396, 408, 418, 420, 436, 437, 438, 460, 485, 486, 490, 496, 497]

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

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