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.

A242093 Number A(n,k) of inequivalent n X k binary matrices, where equivalence means permutations of rows or columns or the symbol set; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 2
8 2
9 1
10 1
11 2
12 5
13 2
14 1
15 1
16 3
17 8
18 8
19 3
20 1
21 1
22 3
23 14
24 18
25 14
26 3
27 1
28 1
29 4
30 20
31 47
32 47
33 20
34 4
35 1
36 1
37 4
38 30
39 95
40 173
41 95
42 30
43 4
44 1
45 1
46 5
47 40
48 200
49 545
50 545
51 200
52 40
53 5
54 1
55 1
56 5
57 55
58 367
59 1682
60 2812
61 1682
62 367
63 55
64 5
65 1
66 1
67 6
68 70
69 674
70 4745
71 14386
72 14386
73 4745
74 674
75 70
76 6
77 1

List of values

[1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 5, 2, 1, 1, 3, 8, 8, 3, 1, 1, 3, 14, 18, 14, 3, 1, 1, 4, 20, 47, 47, 20, 4, 1, 1, 4, 30, 95, 173, 95, 30, 4, 1, 1, 5, 40, 200, 545, 545, 200, 40, 5, 1, 1, 5, 55, 367, 1682, 2812, 1682, 367, 55, 5, 1, 1, 6, 70, 674, 4745, 14386, 14386, 4745, 674, 70, 6, 1]