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.

A090669 Numbers k such that 7^k - 2 is a prime.

Table of values

n a(n)
1 1
2 2
3 4
4 7
5 8
6 12
7 15
8 28
9 31
10 84
11 98
12 128
13 238
14 302
15 859
16 1508
17 1586
18 2091
19 2796
20 2888
21 3924
22 4815
23 5636
24 6596
25 7090
26 20176
27 22176
28 56386
29 84050
30 115515
31 245608
32 259710
33 274120

List of values

[1, 2, 4, 7, 8, 12, 15, 28, 31, 84, 98, 128, 238, 302, 859, 1508, 1586, 2091, 2796, 2888, 3924, 4815, 5636, 6596, 7090, 20176, 22176, 56386, 84050, 115515, 245608, 259710, 274120]