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.

A267644 T(n,k)=Number of nXk 0..1 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 8
6 3
7 5
8 18
9 18
10 5
11 7
12 50
13 51
14 50
15 7
16 11
17 98
18 189
19 189
20 98
21 11
22 15
23 242
24 429
25 1015
26 429
27 242
28 15
29 23
30 450
31 1353
32 2887
33 2887
34 1353
35 450
36 23
37 31
38 1058
39 2829
40 12623
41 8917
42 12623
43 2829
44 1058
45 31
46 47
47 1922
48 8427
49 32303
50 47715
51 47715
52 32303
53 8427
54 1922
55 47
56 63

List of values

[1, 2, 2, 3, 8, 3, 5, 18, 18, 5, 7, 50, 51, 50, 7, 11, 98, 189, 189, 98, 11, 15, 242, 429, 1015, 429, 242, 15, 23, 450, 1353, 2887, 2887, 1353, 450, 23, 31, 1058, 2829, 12623, 8917, 12623, 2829, 1058, 31, 47, 1922, 8427, 32303, 47715, 47715, 32303, 8427, 1922, 47, 63]