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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.

A101790 Numbers k such that 4*k-1, 8*k-1 and 16*k-1 are all primes.

Table of values

n a(n)
1 3
2 45
3 90
4 180
5 255
6 258
7 363
8 378
9 453
10 483
11 615
12 675
13 705
14 873
15 885
16 978
17 1350
18 1533
19 1770
20 1788
21 2673
22 2793
23 2868
24 3030
25 3225
26 3240
27 4203
28 4290
29 4548
30 4830
31 4998
32 5103
33 5253
34 5295
35 5568
36 5775
37 5955
38 6060
39 6138
40 6870
41 7383
42 7713
43 8133
44 8370
45 8580
46 9000

List of values

[3, 45, 90, 180, 255, 258, 363, 378, 453, 483, 615, 675, 705, 873, 885, 978, 1350, 1533, 1770, 1788, 2673, 2793, 2868, 3030, 3225, 3240, 4203, 4290, 4548, 4830, 4998, 5103, 5253, 5295, 5568, 5775, 5955, 6060, 6138, 6870, 7383, 7713, 8133, 8370, 8580, 9000]

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

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