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.

A263373 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 2
6 2
7 5
8 7
9 7
10 5
11 10
12 29
13 82
14 29
15 10
16 19
17 112
18 865
19 865
20 112
21 19
22 37
23 367
24 9888
25 24711
26 9888
27 367
28 37
29 73
30 1359
31 107514
32 826249
33 826249
34 107514
35 1359
36 73
37 146
38 5370
39 1260442
40 27274339
41 84790557
42 27274339
43 1260442
44 5370
45 146
46 293
47 21447
48 15048493

List of values

[1, 1, 1, 2, 2, 2, 5, 7, 7, 5, 10, 29, 82, 29, 10, 19, 112, 865, 865, 112, 19, 37, 367, 9888, 24711, 9888, 367, 37, 73, 1359, 107514, 826249, 826249, 107514, 1359, 73, 146, 5370, 1260442, 27274339, 84790557, 27274339, 1260442, 5370, 146, 293, 21447, 15048493]