A283797 - cp's OEIS frontend

A283797 Triangle T(n,k) read by rows: The number of q-circulant n X n {0,1}-matrices where each column sum, each row sum and the trace equal k.

n	a(n)
0	1
1	1
2	1
3	1
4	0
5	1
6	1
7	3
8	3
9	1
10	1
11	0
12	8
13	0
14	1
15	1
16	15
17	30
18	30
19	15
20	1
21	1
22	0
23	15
24	0
25	15
26	0
27	1
28	1
29	35
30	105
31	175
32	175
33	105
34	35
35	1
36	1
37	0
38	64
39	0
40	192
41	0
42	64
43	0
44	1
45	1
46	27
47	108
48	390
49	378
50	378
51	390
52	108
53	27
54	1
55	1
56	0
57	135
58	0
59	570
60	0
61	570
62	0
63	135
64	0
65	1
66	1
67	99
68	495
69	1485
70	2970
71	4158
72	4158
73	2970
74	1485
75	495
76	99
77	1
78	1
79	0
80	72
81	0

[1, 1, 1, 1, 0, 1, 1, 3, 3, 1, 1, 0, 8, 0, 1, 1, 15, 30, 30, 15, 1, 1, 0, 15, 0, 15, 0, 1, 1, 35, 105, 175, 175, 105, 35, 1, 1, 0, 64, 0, 192, 0, 64, 0, 1, 1, 27, 108, 390, 378, 378, 390, 108, 27, 1, 1, 0, 135, 0, 570, 0, 570, 0, 135, 0, 1, 1, 99, 495, 1485, 2970, 4158, 4158, 2970, 1485, 495, 99, 1, 1, 0, 72, 0]

cp's OEIS Frontend

A283797 Triangle T(n,k) read by rows: The number of q-circulant n X n {0,1}-matrices where each column sum, each row sum and the trace equal k.

Table of values

List of values