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.

A176888 Unsafe primes minus 1.

Table of values

n a(n)
1 1
2 2
3 12
4 16
5 18
6 28
7 30
8 36
9 40
10 42
11 52
12 60
13 66
14 70
15 72
16 78
17 88
18 96
19 100
20 102
21 108
22 112
23 126
24 130
25 136
26 138
27 148
28 150
29 156
30 162
31 172
32 180
33 190
34 192
35 196
36 198
37 210
38 222
39 228
40 232
41 238
42 240
43 250
44 256
45 268
46 270
47 276
48 280
49 282
50 292
51 306
52 310
53 312
54 316
55 330
56 336

List of values

[1, 2, 12, 16, 18, 28, 30, 36, 40, 42, 52, 60, 66, 70, 72, 78, 88, 96, 100, 102, 108, 112, 126, 130, 136, 138, 148, 150, 156, 162, 172, 180, 190, 192, 196, 198, 210, 222, 228, 232, 238, 240, 250, 256, 268, 270, 276, 280, 282, 292, 306, 310, 312, 316, 330, 336]