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.

A051635 Weak primes: prime(n) < (prime(n-1) + prime(n+1))/2.

Table of values

n a(n)
1 3
2 7
3 13
4 19
5 23
6 31
7 43
8 47
9 61
10 73
11 83
12 89
13 103
14 109
15 113
16 131
17 139
18 151
19 167
20 181
21 193
22 199
23 229
24 233
25 241
26 271
27 283
28 293
29 313
30 317
31 337
32 349
33 353
34 359
35 383
36 389
37 401
38 409
39 421
40 433
41 443
42 449
43 463
44 467
45 491
46 503
47 509
48 523
49 547
50 571
51 577
52 601
53 619
54 643
55 647

List of values

[3, 7, 13, 19, 23, 31, 43, 47, 61, 73, 83, 89, 103, 109, 113, 131, 139, 151, 167, 181, 193, 199, 229, 233, 241, 271, 283, 293, 313, 317, 337, 349, 353, 359, 383, 389, 401, 409, 421, 433, 443, 449, 463, 467, 491, 503, 509, 523, 547, 571, 577, 601, 619, 643, 647]