A379778 - cp's OEIS frontend

A379778 Triangular array read by rows, T(n,k) is the number of n X n matrices over GF(2) that converge to an idempotent at rank k, n>=0, 0<=k<=n.

n	a(n)
0	1
1	1
2	1
3	4
4	6
5	1
6	64
7	112
8	28
9	1
10	4096
11	7680
12	2240
13	120
14	1
15	1048576
16	2031616
17	634880
18	39680
19	496
20	1
21	1073741824
22	2113929216
23	682622976
24	45711360
25	666624
26	2016
27	1
28	4398046511104
29	8727373545472
30	2863669444608
31	198155698176
32	3096182784
33	10924032
34	8128
35	1

[1, 1, 1, 4, 6, 1, 64, 112, 28, 1, 4096, 7680, 2240, 120, 1, 1048576, 2031616, 634880, 39680, 496, 1, 1073741824, 2113929216, 682622976, 45711360, 666624, 2016, 1, 4398046511104, 8727373545472, 2863669444608, 198155698176, 3096182784, 10924032, 8128, 1]

cp's OEIS Frontend

A379778 Triangular array read by rows, T(n,k) is the number of n X n matrices over GF(2) that converge to an idempotent at rank k, n>=0, 0<=k<=n.

Table of values

List of values