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.

A224793 Least prime p which generates exactly n primes of the form p+q-1 where q < p is prime, or 0 if (conjecturally) no such p exists.

Table of values

n a(n)
0 2
1 5
2 11
3 13
4 47
5 41
6 31
7 107
8 43
9 73
10 131
11 61
12 191
13 97
14 293
15 139
16 353
17 127
18 163
19 151
20 0
21 229
22 283
23 223
24 659
25 181
26 929
27 313
28 241
29 211
30 367
31 701
32 271
33 397
34 379
35 457
36 337
37 1031
38 1259
39 607
40 331
41 463
42 643
43 613
44 1409
45 733
46 911
47 1091
48 541
49 1997
50 421
51 727
52 709
53 673

List of values

[2, 5, 11, 13, 47, 41, 31, 107, 43, 73, 131, 61, 191, 97, 293, 139, 353, 127, 163, 151, 0, 229, 283, 223, 659, 181, 929, 313, 241, 211, 367, 701, 271, 397, 379, 457, 337, 1031, 1259, 607, 331, 463, 643, 613, 1409, 733, 911, 1091, 541, 1997, 421, 727, 709, 673]