A283117 - cp's OEIS frontend

A283117 Number of nonequivalent ways (mod D_3) to place rooks on an n X n X n triangular grid so that no two of them are on the same row, column or diagonal.

n	a(n)
1	2
2	2
3	4
4	8
5	19
6	51
7	169
8	592
9	2281
10	9268
11	39521
12	175875
13	813780
14	3903533
15	19367571
16	99208196
17	523695465
18	2844708347
19	15877906262
20	90955375095
21	534101204061

[2, 2, 4, 8, 19, 51, 169, 592, 2281, 9268, 39521, 175875, 813780, 3903533, 19367571, 99208196, 523695465, 2844708347, 15877906262, 90955375095, 534101204061]

cp's OEIS Frontend

A283117 Number of nonequivalent ways (mod D_3) to place rooks on an n X n X n triangular grid so that no two of them are on the same row, column or diagonal.

Table of values

List of values