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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.

A160433 a(n) is the least number k such that (k-th prime after n!+1)-n! is not a prime.

Table of values

n a(n)
0 2
1 2
2 3
3 7
4 8
5 15
6 8
7 18
8 16
9 19
10 12
11 20
12 11
13 8
14 11
15 6
16 12
17 23
18 24
19 15
20 31
21 21
22 27
23 15
24 16
25 26
26 25
27 17
28 17
29 29
30 20
31 27
32 27
33 30
34 23
35 16
36 28
37 23
38 25
39 29
40 15
41 24
42 19
43 36
44 36
45 39
46 15
47 36
48 24
49 44
50 35
51 29
52 27
53 25
54 36
55 22
56 37
57 31
58 32
59 41
60 29
61 55
62 27
63 45
64 29
65 59
66 34
67 37
68 24
69 49
70 25
71 40

List of values

[2, 2, 3, 7, 8, 15, 8, 18, 16, 19, 12, 20, 11, 8, 11, 6, 12, 23, 24, 15, 31, 21, 27, 15, 16, 26, 25, 17, 17, 29, 20, 27, 27, 30, 23, 16, 28, 23, 25, 29, 15, 24, 19, 36, 36, 39, 15, 36, 24, 44, 35, 29, 27, 25, 36, 22, 37, 31, 32, 41, 29, 55, 27, 45, 29, 59, 34, 37, 24, 49, 25, 40]

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

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