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.

A217001 Numbers k such that (k^2 + k + 2)/4 is prime.

Table of values

n a(n)
1 2
2 6
3 9
4 14
5 22
6 25
7 30
8 33
9 41
10 46
11 49
12 54
13 57
14 62
15 86
16 89
17 97
18 113
19 118
20 121
21 126
22 134
23 142
24 161
25 177
26 198
27 201
28 209
29 214
30 217
31 222
32 225
33 238
34 254
35 265
36 273
37 278
38 286
39 294
40 302
41 305
42 310
43 313
44 321
45 329
46 337
47 342
48 350
49 366
50 393
51 414
52 417
53 425
54 441
55 449
56 470

List of values

[2, 6, 9, 14, 22, 25, 30, 33, 41, 46, 49, 54, 57, 62, 86, 89, 97, 113, 118, 121, 126, 134, 142, 161, 177, 198, 201, 209, 214, 217, 222, 225, 238, 254, 265, 273, 278, 286, 294, 302, 305, 310, 313, 321, 329, 337, 342, 350, 366, 393, 414, 417, 425, 441, 449, 470]