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.

A002641 Numbers k such that (k^2 + k + 1)/7 is prime.

Table of values

n a(n)
1 4
2 9
3 11
4 23
5 32
6 39
7 44
8 51
9 53
10 60
11 65
12 72
13 86
14 93
15 95
16 114
17 123
18 156
19 170
20 179
21 186
22 200
23 207
24 212
25 219
26 228
27 233
28 240
29 249
30 261
31 270
32 303
33 317
34 333
35 338
36 345
37 375
38 389
39 401
40 443
41 452
42 473
43 480
44 492
45 515
46 534
47 548
48 564
49 578
50 585
51 597
52 599
53 611
54 641
55 660
56 662

List of values

[4, 9, 11, 23, 32, 39, 44, 51, 53, 60, 65, 72, 86, 93, 95, 114, 123, 156, 170, 179, 186, 200, 207, 212, 219, 228, 233, 240, 249, 261, 270, 303, 317, 333, 338, 345, 375, 389, 401, 443, 452, 473, 480, 492, 515, 534, 548, 564, 578, 585, 597, 599, 611, 641, 660, 662]