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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.

A305883 Triangle read by rows: row n lists the pairs (p, q) such that p, q are primes, p+q=2*n and p < q.

Table of values

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

List of values

[3, 5, 3, 7, 5, 7, 3, 11, 3, 13, 5, 11, 5, 13, 7, 11, 3, 17, 7, 13, 3, 19, 5, 17, 5, 19, 7, 17, 11, 13, 3, 23, 7, 19, 5, 23, 11, 17, 7, 23, 11, 19, 13, 17, 3, 29, 13, 19, 3, 31, 5, 29, 11, 23, 5, 31, 7, 29, 13, 23, 17, 19, 7, 31, 3, 37, 11, 29, 17, 23, 5, 37, 11, 31]

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