A274948 - cp's OEIS frontend

A274948 Irregular triangle read by rows: T(n,k) (n>=1, 0 <= k <= n^2) = maximal number of squares not attacked by any arrangement of k queens on an n X n board = n^2 - A274947(n,k).

n	a(n)
1	1
2	0
3	4
4	0
5	0
6	0
7	0
8	9
9	2
10	1
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	16
19	6
20	3
21	2
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	25
36	12
37	7
38	5
39	4
40	3
41	2
42	2
43	1
44	1
45	1
46	1
47	1
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0

[1, 0, 4, 0, 0, 0, 0, 9, 2, 1, 0, 0, 0, 0, 0, 0, 0, 16, 6, 3, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 25, 12, 7, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A274948 Irregular triangle read by rows: T(n,k) (n>=1, 0 <= k <= n^2) = maximal number of squares not attacked by any arrangement of k queens on an n X n board = n^2 - A274947(n,k).

Table of values

List of values

n	a(n)
1	1
2	0
3	4
4	0
5	0
6	0
7	0
8	9
9	2
10	1
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	16
19	6
20	3
21	2
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	25
36	12
37	7
38	5
39	4
40	3
41	2
42	2
43	1
44	1
45	1
46	1
47	1
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0

n	a(n)
1	1
2	0
3	4
4	0
5	0
6	0
7	0
8	9
9	2
10	1
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	16
19	6
20	3
21	2
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	25
36	12
37	7
38	5
39	4
40	3
41	2
42	2
43	1
44	1
45	1
46	1
47	1
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0

n	a(n)
1	1
2	0
3	4
4	0
5	0
6	0
7	0
8	9
9	2
10	1
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	16
19	6
20	3
21	2
22	1
23	1
24	1
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	25
36	12
37	7
38	5
39	4
40	3
41	2
42	2
43	1
44	1
45	1
46	1
47	1
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0