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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.

A317309 Primes p such that the largest Dyck path of the symmetric representation of sigma(p) has a central valley.

Table of values

n a(n)
1 3
2 5
3 11
4 13
5 23
6 37
7 41
8 43
9 59
10 61
11 79
12 83
13 89
14 107
15 109
16 113
17 137
18 139
19 149
20 151
21 173
22 179
23 181
24 211
25 223
26 227
27 229
28 257
29 263
30 269
31 271
32 307
33 311
34 313
35 317
36 353
37 359
38 367
39 373
40 409
41 419
42 421
43 431
44 433
45 467
46 479
47 487
48 491
49 541
50 547
51 557
52 599
53 601
54 607
55 613
56 617
57 619
58 673
59 677
60 683
61 691
62 701

List of values

[3, 5, 11, 13, 23, 37, 41, 43, 59, 61, 79, 83, 89, 107, 109, 113, 137, 139, 149, 151, 173, 179, 181, 211, 223, 227, 229, 257, 263, 269, 271, 307, 311, 313, 317, 353, 359, 367, 373, 409, 419, 421, 431, 433, 467, 479, 487, 491, 541, 547, 557, 599, 601, 607, 613, 617, 619, 673, 677, 683, 691, 701]

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

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