A321615 - cp's OEIS frontend

A321615 Triangle read by rows: T(n,k) is the number of k X k integer matrices with sum of elements n, with no zero rows or columns, up to row and column permutation.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	2
9	1
10	0
11	1
12	6
13	3
14	1
15	0
16	1
17	9
18	13
19	3
20	1
21	0
22	1
23	17
24	38
25	20
26	3
27	1
28	0
29	1
30	23
31	97
32	82
33	23
34	3
35	1
36	0
37	1
38	36
39	217
40	311
41	126
42	24
43	3
44	1
45	0
46	1
47	46
48	453
49	968
50	624
51	151
52	24
53	3
54	1
55	0
56	1
57	65
58	868
59	2825
60	2637
61	933
62	162
63	24
64	3
65	1
66	0
67	1
68	80
69	1585
70	7394
71	10098
72	4942
73	1132
74	165
75	24
76	3
77	1

[1, 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 6, 3, 1, 0, 1, 9, 13, 3, 1, 0, 1, 17, 38, 20, 3, 1, 0, 1, 23, 97, 82, 23, 3, 1, 0, 1, 36, 217, 311, 126, 24, 3, 1, 0, 1, 46, 453, 968, 624, 151, 24, 3, 1, 0, 1, 65, 868, 2825, 2637, 933, 162, 24, 3, 1, 0, 1, 80, 1585, 7394, 10098, 4942, 1132, 165, 24, 3, 1]

cp's OEIS Frontend

A321615 Triangle read by rows: T(n,k) is the number of k X k integer matrices with sum of elements n, with no zero rows or columns, up to row and column permutation.

Table of values

List of values