A276449 - cp's OEIS frontend

A276449 Number of 1-orbits of the cyclic group C_4 for a bi-colored square n X n grid with n squares of one color.

n	a(n)
1	1
2	0
3	0
4	4
5	6
6	0
7	0
8	120
9	190
10	0
11	0
12	7140
13	11480
14	0
15	0
16	635376
17	1028790
18	0
19	0
20	75287520
21	122391522
22	0
23	0
24	11143364232
25	18161699556
26	0
27	0
28	1978369382080
29	3230129794320
30	0
31	0
32	409663695276000
33	669741609663270
34	0
35	0
36	96930293990660064
37	158625578809472060

[1, 0, 0, 4, 6, 0, 0, 120, 190, 0, 0, 7140, 11480, 0, 0, 635376, 1028790, 0, 0, 75287520, 122391522, 0, 0, 11143364232, 18161699556, 0, 0, 1978369382080, 3230129794320, 0, 0, 409663695276000, 669741609663270, 0, 0, 96930293990660064, 158625578809472060]

cp's OEIS Frontend

A276449 Number of 1-orbits of the cyclic group C_4 for a bi-colored square n X n grid with n squares of one color.

Table of values

List of values