A079213 - cp's OEIS frontend

A079213 Triangle read by rows giving T(n,k) = number of sets of k black squares in an n X n checkerboard with the upper left corner colored black, such that the line joining any 2 squares slopes down to the right, 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	5
8	3
9	1
10	1
11	8
12	12
13	4
14	1
15	1
16	13
17	28
18	22
19	5
20	1
21	1
22	18
23	63
24	68
25	35
26	6
27	1
28	1
29	25
30	117
31	197
32	135
33	51
34	7
35	1
36	1
37	32
38	208
39	464
40	480
41	236
42	70
43	8
44	1
45	1
46	41
47	336
48	1016
49	1376
50	996
51	378
52	92
53	9
54	1
55	1
56	50
57	525
58	2000
59	3600
60	3372
61	1848
62	568
63	117
64	10
65	1
66	1
67	61
68	775
69	3725

[1, 1, 1, 1, 2, 1, 1, 5, 3, 1, 1, 8, 12, 4, 1, 1, 13, 28, 22, 5, 1, 1, 18, 63, 68, 35, 6, 1, 1, 25, 117, 197, 135, 51, 7, 1, 1, 32, 208, 464, 480, 236, 70, 8, 1, 1, 41, 336, 1016, 1376, 996, 378, 92, 9, 1, 1, 50, 525, 2000, 3600, 3372, 1848, 568, 117, 10, 1, 1, 61, 775, 3725]

cp's OEIS Frontend

A079213 Triangle read by rows giving T(n,k) = number of sets of k black squares in an n X n checkerboard with the upper left corner colored black, such that the line joining any 2 squares slopes down to the right, 0 <= k <= n.

Table of values

List of values