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.

A217075 Numbers k such that (k^31-1)/(k-1) is prime.

Table of values

n a(n)
1 2
2 14
3 19
4 31
5 44
6 53
7 71
8 82
9 117
10 127
11 131
12 145
13 177
14 197
15 203
16 241
17 258
18 261
19 276
20 283
21 293
22 320
23 325
24 379
25 387
26 388
27 406
28 413
29 461
30 462
31 470
32 486
33 491
34 534
35 549
36 569
37 582
38 612
39 618
40 639
41 696
42 706
43 723
44 746
45 765
46 767
47 774
48 796
49 802
50 877
51 878
52 903
53 923
54 981

List of values

[2, 14, 19, 31, 44, 53, 71, 82, 117, 127, 131, 145, 177, 197, 203, 241, 258, 261, 276, 283, 293, 320, 325, 379, 387, 388, 406, 413, 461, 462, 470, 486, 491, 534, 549, 569, 582, 612, 618, 639, 696, 706, 723, 746, 765, 767, 774, 796, 802, 877, 878, 903, 923, 981]