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.

A377060 Array read by antidiagonals: T(n,k) is the number of inequivalent n X k nonnegative integer matrices with all column sums n and row sums k up to permutation of rows and columns.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 2
13 1
14 1
15 1
16 1
17 2
18 2
19 1
20 1
21 1
22 1
23 3
24 5
25 3
26 1
27 1
28 1
29 1
30 3
31 9
32 9
33 3
34 1
35 1
36 1
37 1
38 4
39 14
40 43
41 14
42 4
43 1
44 1
45 1
46 1
47 4
48 28
49 147
50 147
51 28
52 4
53 1
54 1
55 1
56 1
57 5
58 44
59 661
60 1856
61 661
62 44
63 5
64 1
65 1
66 1
67 1
68 5
69 73
70 2649
71 25888
72 25888
73 2649
74 73
75 5
76 1
77 1

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 3, 5, 3, 1, 1, 1, 1, 3, 9, 9, 3, 1, 1, 1, 1, 4, 14, 43, 14, 4, 1, 1, 1, 1, 4, 28, 147, 147, 28, 4, 1, 1, 1, 1, 5, 44, 661, 1856, 661, 44, 5, 1, 1, 1, 1, 5, 73, 2649, 25888, 25888, 2649, 73, 5, 1, 1]