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.

A117522 Numbers k such that L(2*k + 1) is prime, where L(m) is a Lucas number.

Table of values

n a(n)
1 2
2 3
3 5
4 6
5 8
6 9
7 15
8 18
9 20
10 23
11 26
12 30
13 35
14 39
15 56
16 156
17 176
18 251
19 306
20 308
21 431
22 548
23 680
24 2393
25 2396
26 2925
27 3870
28 4233
29 5345
30 6125
31 6981
32 7224
33 9734
34 17724
35 18389
36 22253
37 25584
38 28001
39 40835
40 44924
41 47411
42 70028
43 74045
44 79760
45 91544
46 96600
47 101333
48 172146
49 193716
50 221804
51 266138
52 287109
53 308393
54 315590
55 318875
56 325910
57 346073
58 450828
59 525924

List of values

[2, 3, 5, 6, 8, 9, 15, 18, 20, 23, 26, 30, 35, 39, 56, 156, 176, 251, 306, 308, 431, 548, 680, 2393, 2396, 2925, 3870, 4233, 5345, 6125, 6981, 7224, 9734, 17724, 18389, 22253, 25584, 28001, 40835, 44924, 47411, 70028, 74045, 79760, 91544, 96600, 101333, 172146, 193716, 221804, 266138, 287109, 308393, 315590, 318875, 325910, 346073, 450828, 525924]