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.

A266547 T(n,k)=Number of nXk binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.

Table of values

n a(n)
1 2
2 2
3 2
4 2
5 3
6 2
7 2
8 3
9 3
10 2
11 2
12 4
13 5
14 4
15 2
16 2
17 4
18 6
19 6
20 4
21 2
22 2
23 5
24 8
25 12
26 8
27 5
28 2
29 2
30 5
31 11
32 16
33 16
34 11
35 5
36 2
37 2
38 6
39 13
40 27
41 36
42 27
43 13
44 6
45 2
46 2
47 6
48 16
49 36
50 58
51 58
52 36
53 16
54 6
55 2
56 2
57 7
58 20
59 57
60 110
61 176
62 110
63 57
64 20
65 7
66 2
67 2
68 7
69 23
70 76
71 196
72 366
73 366
74 196
75 76
76 23
77 7
78 2
79 2
80 8
81 27
82 114
83 363

List of values

[2, 2, 2, 2, 3, 2, 2, 3, 3, 2, 2, 4, 5, 4, 2, 2, 4, 6, 6, 4, 2, 2, 5, 8, 12, 8, 5, 2, 2, 5, 11, 16, 16, 11, 5, 2, 2, 6, 13, 27, 36, 27, 13, 6, 2, 2, 6, 16, 36, 58, 58, 36, 16, 6, 2, 2, 7, 20, 57, 110, 176, 110, 57, 20, 7, 2, 2, 7, 23, 76, 196, 366, 366, 196, 76, 23, 7, 2, 2, 8, 27, 114, 363]