A140650 - cp's OEIS frontend

A140650 Number of different ways of coloring an n X n grid of squares using two colors so that the resulting grid has just one line of symmetry.

n	a(n)
1	0
2	3
3	48
4	600
5	32256
6	1177344
7	268369920
8	36506664960
9	35184338534400
10	18577347909255168
11	73786976226118729728
12	153476910691030086451200
13	2475880078570197599844827136
14	20440865928680162788862343512064
15	1329227995784915854457062986570792960

[0, 3, 48, 600, 32256, 1177344, 268369920, 36506664960, 35184338534400, 18577347909255168, 73786976226118729728, 153476910691030086451200, 2475880078570197599844827136, 20440865928680162788862343512064, 1329227995784915854457062986570792960]

cp's OEIS Frontend

A140650 Number of different ways of coloring an n X n grid of squares using two colors so that the resulting grid has just one line of symmetry.

Table of values

List of values