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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.

A084922 a(n) = (prime(n)-1)*(prime(n)+1)/6.

Table of values

n a(n)
3 4
4 8
5 20
6 28
7 48
8 60
9 88
10 140
11 160
12 228
13 280
14 308
15 368
16 468
17 580
18 620
19 748
20 840
21 888
22 1040
23 1148
24 1320
25 1568
26 1700
27 1768
28 1908
29 1980
30 2128
31 2688
32 2860
33 3128
34 3220
35 3700
36 3800
37 4108
38 4428
39 4648
40 4988
41 5340
42 5460
43 6080
44 6208
45 6468
46 6600
47 7420

List of values

[4, 8, 20, 28, 48, 60, 88, 140, 160, 228, 280, 308, 368, 468, 580, 620, 748, 840, 888, 1040, 1148, 1320, 1568, 1700, 1768, 1908, 1980, 2128, 2688, 2860, 3128, 3220, 3700, 3800, 4108, 4428, 4648, 4988, 5340, 5460, 6080, 6208, 6468, 6600, 7420]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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