A224333 - cp's OEIS frontend

A224333 T(n,k)=Number of idempotent n X n 0..k matrices of rank n-1.

n	a(n)
1	1
2	1
3	6
4	1
5	10
6	21
7	1
8	14
9	51
10	60
11	1
12	18
13	93
14	212
15	155
16	1
17	22
18	147
19	508
20	805
21	378
22	1
23	26
24	213
25	996
26	2555
27	2910
28	889
29	1
30	30
31	291
32	1724
33	6245
34	12282
35	10199
36	2040
37	1
38	34
39	381
40	2740
41	12955
42	37494
43	57337
44	34984
45	4599
46	1
47	38
48	483
49	4092
50	24005
51	93306
52	218743
53	262136

[1, 1, 6, 1, 10, 21, 1, 14, 51, 60, 1, 18, 93, 212, 155, 1, 22, 147, 508, 805, 378, 1, 26, 213, 996, 2555, 2910, 889, 1, 30, 291, 1724, 6245, 12282, 10199, 2040, 1, 34, 381, 2740, 12955, 37494, 57337, 34984, 4599, 1, 38, 483, 4092, 24005, 93306, 218743, 262136]

cp's OEIS Frontend

A224333 T(n,k)=Number of idempotent n X n 0..k matrices of rank n-1.

Table of values

List of values