A367522 - cp's OEIS frontend

A367522 The number of ways of tiling the n X n grid up to the symmetries of the square by a tile that is fixed under both horizontal and vertical reflection, but not diagonal reflection.

n	a(n)
1	1
2	4
3	84
4	8292
5	4203520
6	8590033024
7	70368815480832
8	2305843010824323072
9	302231454912728264605696
10	158456325028529097399561355264
11	332306998946228986960926214931349504
12	2787593149816327892693735671512138485071872
13	93536104789177786765036453099565034406633831137280

[1, 4, 84, 8292, 4203520, 8590033024, 70368815480832, 2305843010824323072, 302231454912728264605696, 158456325028529097399561355264, 332306998946228986960926214931349504, 2787593149816327892693735671512138485071872, 93536104789177786765036453099565034406633831137280]

cp's OEIS Frontend

A367522 The number of ways of tiling the n X n grid up to the symmetries of the square by a tile that is fixed under both horizontal and vertical reflection, but not diagonal reflection.

Table of values

List of values