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.

A176569 a(n) = (-1)^n + (n-th prime of the form 3k-+1).

Table of values

n a(n)
1 1
2 6
3 6
4 12
5 12
6 18
7 18
8 24
9 28
10 32
11 36
12 42
13 42
14 48
15 52
16 60
17 60
18 68
19 70
20 74
21 78
22 84
23 88
24 98
25 100
26 104
27 106
28 110
29 112
30 128
31 130
32 138
33 138
34 150
35 150
36 158
37 162
38 168
39 172
40 180
41 180
42 192
43 192
44 198
45 198
46 212
47 222
48 228
49 228
50 234
51 238
52 242
53 250
54 258
55 262
56 270
57 270
58 278

List of values

[1, 6, 6, 12, 12, 18, 18, 24, 28, 32, 36, 42, 42, 48, 52, 60, 60, 68, 70, 74, 78, 84, 88, 98, 100, 104, 106, 110, 112, 128, 130, 138, 138, 150, 150, 158, 162, 168, 172, 180, 180, 192, 192, 198, 198, 212, 222, 228, 228, 234, 238, 242, 250, 258, 262, 270, 270, 278]