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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.

A210647 Least nonnegative m such that k(n) + k(m) is prime, where k(n) = n*(n+1)^2/2.

Table of values

n a(n)
1 0
2 1
3 22
4 2
5 142
6 1
7 2
8 10
9 22
10 1
11 34
12 10
13 2
14 37
15 46
16 6
17 10
18 1
19 6
20 46
21 46
22 1
23 10
24 106
25 6
26 1
27 58
28 2
29 22
30 7
31 2
32 58
33 94
34 3
35 22
36 10
37 2
38 1
39 22
40 2
41 10
42 16
43 6
44 82
45 118
46 4
47 82
48 10
49 18
50 1
51 10
52 2
53 22
54 1
55 2
56 10
57 10
58 4
59 22
60 58
61 2
62 19
63 10
64 2
65 46
66 1
67 10
68 70
69 82
70 3
71 22
72 34

List of values

[0, 1, 22, 2, 142, 1, 2, 10, 22, 1, 34, 10, 2, 37, 46, 6, 10, 1, 6, 46, 46, 1, 10, 106, 6, 1, 58, 2, 22, 7, 2, 58, 94, 3, 22, 10, 2, 1, 22, 2, 10, 16, 6, 82, 118, 4, 82, 10, 18, 1, 10, 2, 22, 1, 2, 10, 10, 4, 22, 58, 2, 19, 10, 2, 46, 1, 10, 70, 82, 3, 22, 34]

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