A193580 - cp's OEIS frontend

A193580 Triangle read by rows: T(n,k) = number of ways to place k nonattacking kings on an n X n board.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	9
7	16
8	8
9	1
10	1
11	16
12	78
13	140
14	79
15	1
16	25
17	228
18	964
19	1987
20	1974
21	978
22	242
23	27
24	1
25	1
26	36
27	520
28	3920
29	16834
30	42368
31	62266
32	51504
33	21792
34	3600
35	1
36	49
37	1020
38	11860
39	85275
40	397014
41	1220298
42	2484382
43	3324193
44	2882737
45	1601292
46	569818
47	129657
48	18389
49	1520
50	64
51	1

[1, 1, 1, 1, 4, 1, 9, 16, 8, 1, 1, 16, 78, 140, 79, 1, 25, 228, 964, 1987, 1974, 978, 242, 27, 1, 1, 36, 520, 3920, 16834, 42368, 62266, 51504, 21792, 3600, 1, 49, 1020, 11860, 85275, 397014, 1220298, 2484382, 3324193, 2882737, 1601292, 569818, 129657, 18389, 1520, 64, 1]

cp's OEIS Frontend

A193580 Triangle read by rows: T(n,k) = number of ways to place k nonattacking kings on an n X n board.

Table of values

List of values