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.

A359313 Triangular array read by rows. T(n,k) is the number of Green's H-classes contained in the D-class of rank k matrices in the semigroup Mat_n(F_2) of n X n matrices over the field F_2. n>=0, 0<=k<=n.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 9
5 1
6 1
7 49
8 49
9 1
10 1
11 225
12 1225
13 225
14 1
15 1
16 961
17 24025
18 24025
19 961
20 1
21 1
22 3969
23 423801
24 1946025
25 423801
26 3969
27 1
28 1
29 16129
30 7112889
31 139499721
32 139499721
33 7112889
34 16129
35 1
36 1
37 65025
38 116532025
39 9439094025
40 40315419369
41 9439094025
42 116532025
43 65025
44 1

List of values

[1, 1, 1, 1, 9, 1, 1, 49, 49, 1, 1, 225, 1225, 225, 1, 1, 961, 24025, 24025, 961, 1, 1, 3969, 423801, 1946025, 423801, 3969, 1, 1, 16129, 7112889, 139499721, 139499721, 7112889, 16129, 1, 1, 65025, 116532025, 9439094025, 40315419369, 9439094025, 116532025, 65025, 1]