A346412 - cp's OEIS frontend

A346412 Triangular array read by rows: T(n,k) is the number of nilpotent n X n matrices over GF(2) having rank k, 0 <= k <= n-1, n >= 1.

n	a(n)
1	1
2	1
3	3
4	1
5	21
6	42
7	1
8	105
9	1470
10	2520
11	1
12	465
13	32550
14	390600
15	624960
16	1
17	1953
18	605430
19	36325800
20	406848960
21	629959680
22	1
23	8001
24	10417302
25	2768025960
26	155009453760
27	1680102466560
28	2560156139520
29	1
30	32385
31	172741590
32	192779614440
33	47809344381120
34	2590958018073600
35	27636885526118400
36	41781748196966400

[1, 1, 3, 1, 21, 42, 1, 105, 1470, 2520, 1, 465, 32550, 390600, 624960, 1, 1953, 605430, 36325800, 406848960, 629959680, 1, 8001, 10417302, 2768025960, 155009453760, 1680102466560, 2560156139520, 1, 32385, 172741590, 192779614440, 47809344381120, 2590958018073600, 27636885526118400, 41781748196966400]

cp's OEIS Frontend

A346412 Triangular array read by rows: T(n,k) is the number of nilpotent n X n matrices over GF(2) having rank k, 0 <= k <= n-1, n >= 1.

Table of values

List of values