A343595 - cp's OEIS frontend

A343595 a(n) is the number of axially symmetric tilings of the order-n Aztec Diamond by square tetrominoes and Z-shaped tetrominoes, not counting rotations and reflections as distinct.

n	a(n)
1	1
2	1
3	2
4	7
5	26
6	162
7	1096
8	12210
9	149384
10	2979716
11	65702176
12	2347717180
13	93123644320
14	5962338902536
15	424966024145024
16	48757525297347464
17	6240064849995542656
18	1282987881672304949776
19	294690971817685508825600
20	108580010933558879525595504

[1, 1, 2, 7, 26, 162, 1096, 12210, 149384, 2979716, 65702176, 2347717180, 93123644320, 5962338902536, 424966024145024, 48757525297347464, 6240064849995542656, 1282987881672304949776, 294690971817685508825600, 108580010933558879525595504]

cp's OEIS Frontend

A343595 a(n) is the number of axially symmetric tilings of the order-n Aztec Diamond by square tetrominoes and Z-shaped tetrominoes, not counting rotations and reflections as distinct.

Table of values

List of values