A260043 - cp's OEIS frontend

A260043 Irregular triangle read by rows: T(n,k) (n >= 1, 0 <= k <= n^2) = number of n X n (0,1) real matrices with k zeros and permanent zero.

n	a(n)
1	0
2	1
3	0
4	0
5	4
6	4
7	1
8	0
9	0
10	0
11	6
12	45
13	90
14	78
15	36
16	9
17	1
18	0
19	0
20	0
21	0
22	8
23	96
24	576
25	2128
26	4860
27	676
28	6496
29	4080
30	1796
31	560
32	120
33	16
34	1
35	0
36	0
37	0
38	0
39	0
40	10
41	200
42	1900
43	11500
44	50025
45	166720
46	439600
47	923700
48	1534800
49	1994200
50	2010920
51	1571525
52	956775
53	458500
54	174700
55	53010
56	12650
57	2300
58	300
59	25
60	1

[0, 1, 0, 0, 4, 4, 1, 0, 0, 0, 6, 45, 90, 78, 36, 9, 1, 0, 0, 0, 0, 8, 96, 576, 2128, 4860, 676, 6496, 4080, 1796, 560, 120, 16, 1, 0, 0, 0, 0, 0, 10, 200, 1900, 11500, 50025, 166720, 439600, 923700, 1534800, 1994200, 2010920, 1571525, 956775, 458500, 174700, 53010, 12650, 2300, 300, 25, 1]

cp's OEIS Frontend

A260043 Irregular triangle read by rows: T(n,k) (n >= 1, 0 <= k <= n^2) = number of n X n (0,1) real matrices with k zeros and permanent zero.

Table of values

List of values