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.

A108317 Smallest a(n) such that a(n) n's plus a(n) is prime, or 0 if no such a(n) exists.

Table of values

n a(n)
1 1
2 1
3 140
4 1
5 0
6 1
7 2
8 0
9 2
10 1
11 0
12 1
13 4
14 0
15 4
16 1
17 0
18 1
19 4
20 0
21 0
22 1
23 0
24 23
25 4
26 0
27 2
28 1
29 0
30 1
31 8
32 0
33 4198
34 497
35 0
36 1
37 2
38 0
39 8
40 1
41 0
42 1
43 0
44 0
45 2
46 1
47 0
48 35
49 2
50 0
51 2
52 1
53 0
54 0
55 2
56 0
57 4
58 1
59 0
60 1
61 2
62 0
63 4
64 17
65 0
66 1
67 64
68 0
69 2
70 1
71 0
72 1
73 14
74 0
75 2
76 0
77 0
78 1

List of values

[1, 1, 140, 1, 0, 1, 2, 0, 2, 1, 0, 1, 4, 0, 4, 1, 0, 1, 4, 0, 0, 1, 0, 23, 4, 0, 2, 1, 0, 1, 8, 0, 4198, 497, 0, 1, 2, 0, 8, 1, 0, 1, 0, 0, 2, 1, 0, 35, 2, 0, 2, 1, 0, 0, 2, 0, 4, 1, 0, 1, 2, 0, 4, 17, 0, 1, 64, 0, 2, 1, 0, 1, 14, 0, 2, 0, 0, 1]