A296999 - cp's OEIS frontend

A296999 Number of nonequivalent (mod D_8) ways to place 4 points on an n X n point grid so that no point is equally distant from two other points on the same row or the same column.

n	a(n)
1	0
2	1
3	17
4	226
5	1550
6	7221
7	26120
8	78484
9	206242
10	486640
11	1056377
12	2137506
13	4085167
14	7430276
15	12964014
16	21801632
17	35520743
18	56249658
19	86880957
20	131186720
21	194133425
22	282024809
23	402949496
24	566950056
25	786640454
26	1077397347
27	1458190435
28	1951789266
29	2585856152
30	3393157995

[0, 1, 17, 226, 1550, 7221, 26120, 78484, 206242, 486640, 1056377, 2137506, 4085167, 7430276, 12964014, 21801632, 35520743, 56249658, 86880957, 131186720, 194133425, 282024809, 402949496, 566950056, 786640454, 1077397347, 1458190435, 1951789266, 2585856152, 3393157995]

cp's OEIS Frontend

A296999 Number of nonequivalent (mod D_8) ways to place 4 points on an n X n point grid so that no point is equally distant from two other points on the same row or the same column.

Table of values

List of values