A381854 - cp's OEIS frontend

A381854 Triangle read by rows: T(n, k) is the number of invertible n X n matrices over GF(2) that can be optimally row-reduced in k steps, n >= 0, k >= 0.

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	1
7	6
8	24
9	51
10	60
11	24
12	2
13	1
14	12
15	96
16	542
17	2058
18	5316
19	7530
20	4058
21	541
22	6
23	1
24	20
25	260
26	2570
27	19680
28	117860
29	540470
30	1769710
31	3571175
32	3225310
33	736540
34	15740
35	24
36	1
37	30
38	570
39	8415
40	101610
41	1026852
42	8747890
43	61978340
44	355193925
45	1561232840
46	4753747050
47	8111988473
48	4866461728
49	437272014
50	949902
51	120

[1, 1, 1, 2, 2, 1, 1, 6, 24, 51, 60, 24, 2, 1, 12, 96, 542, 2058, 5316, 7530, 4058, 541, 6, 1, 20, 260, 2570, 19680, 117860, 540470, 1769710, 3571175, 3225310, 736540, 15740, 24, 1, 30, 570, 8415, 101610, 1026852, 8747890, 61978340, 355193925, 1561232840, 4753747050, 8111988473, 4866461728, 437272014, 949902, 120]

cp's OEIS Frontend

A381854 Triangle read by rows: T(n, k) is the number of invertible n X n matrices over GF(2) that can be optimally row-reduced in k steps, n >= 0, k >= 0.

Table of values

List of values