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.

A366141 Triangular array read by rows: T(n,k) is the number of Boolean relation matrices such that all of the blocks of its Frobenius normal form are 0-blocks or 1-blocks and that have exactly k 1-blocks on the diagonal, n>=0, 0<=k<=n.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 7
5 3
6 25
7 85
8 84
9 25
10 543
11 2335
12 3579
13 2322
14 543
15 29281
16 152101
17 310020
18 309725
19 151835
20 29281
21 3781503
22 23139487
23 58538763
24 78349050
25 58514700
26 23128233
27 3781503
28 1138779265
29 8051910805
30 24318772884
31 40667112045
32 40664902810
33 24315521720
34 8050866418
35 1138779265

List of values

[1, 1, 1, 3, 7, 3, 25, 85, 84, 25, 543, 2335, 3579, 2322, 543, 29281, 152101, 310020, 309725, 151835, 29281, 3781503, 23139487, 58538763, 78349050, 58514700, 23128233, 3781503, 1138779265, 8051910805, 24318772884, 40667112045, 40664902810, 24315521720, 8050866418, 1138779265]