A202784 - cp's OEIS frontend

A202784 T(n,k) is the number of n X n 0..k arrays with row and column sums equal.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	4
9	1
10	1
11	4
12	9
13	14
14	1
15	1
16	5
17	16
18	87
19	140
20	1
21	1
22	6
23	25
24	340
25	5673
26	4322
27	1
28	1
29	7
30	36
31	1001
32	89520
33	2577513
34	434542
35	1
36	1
37	8
38	49
39	2442
40	790425
41	290838284
42	8459809773
43	144109562
44	1
45	1
46	9
47	64
48	5215
49	4756140
50	11991502235
51	12092687195284
52	207495141083975
53	165431317452
54	1

[1, 1, 1, 1, 2, 1, 1, 3, 4, 1, 1, 4, 9, 14, 1, 1, 5, 16, 87, 140, 1, 1, 6, 25, 340, 5673, 4322, 1, 1, 7, 36, 1001, 89520, 2577513, 434542, 1, 1, 8, 49, 2442, 790425, 290838284, 8459809773, 144109562, 1, 1, 9, 64, 5215, 4756140, 11991502235, 12092687195284, 207495141083975, 165431317452, 1]

cp's OEIS Frontend

A202784 T(n,k) is the number of n X n 0..k arrays with row and column sums equal.

Table of values

List of values