A368143 - cp's OEIS frontend

A368143 Number of ways of tiling the n X n torus up to 90-degree rotations of the square by two tiles that are each fixed under 90-degree rotation of the square.

n	a(n)
1	2
2	6
3	28
4	1171
5	337664
6	477339616
7	2872202032640
8	72057595967392816
9	7462505059899322983424
10	3169126500571074529242309120
11	5492677668532710795071526353530880
12	38716571525226776289479030777920527620096
13	1106936151351216411420552029913564178922327982080

[2, 6, 28, 1171, 337664, 477339616, 2872202032640, 72057595967392816, 7462505059899322983424, 3169126500571074529242309120, 5492677668532710795071526353530880, 38716571525226776289479030777920527620096, 1106936151351216411420552029913564178922327982080]

cp's OEIS Frontend

A368143 Number of ways of tiling the n X n torus up to 90-degree rotations of the square by two tiles that are each fixed under 90-degree rotation of the square.

Table of values

List of values