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.

A281300 Triangular array read by rows: T(n, k) = (((binomial(2*p-1, p-1)-1)/p^3) mod q) + (((binomial(2*q-1, q-1)-1)/q^3) mod p), where p = prime(n) and q = prime(k) for k = 1..n-1.

Table of values

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

List of values

[2, 5, 3, 3, 7, 1, 4, 5, 1, 11, 11, 9, 3, 6, 7, 14, 7, 4, 9, 13, 13, 6, 15, 2, 6, 27, 11, 19, 7, 9, 3, 8, 17, 22, 34, 27, 23, 11, 2, 11, 9, 25, 15, 38, 17, 9, 21, 4, 6, 24, 16, 14, 28, 4, 30, 29, 25, 1, 11, 14, 41, 38, 30, 44, 27, 13, 32, 15, 5, 6, 28, 39, 30]