A368256 - cp's OEIS frontend

A368256 Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to horizontal and vertical reflections by a tile that is fixed under 180-degree rotation but not horizontal or vertical reflections.

n	a(n)
1	1
2	2
3	2
4	3
5	5
6	2
7	6
8	14
9	9
10	4
11	10
12	44
13	52
14	26
15	4
16	20
17	152
18	366
19	298
20	62
21	8
22	36
23	560
24	2800
25	4244
26	1704
27	205
28	9
29	72
30	2144
31	22028
32	66184
33	52740
34	11228
35	623
36	18
37	136
38	8384
39	175296
40	1050896
41	1679776
42	701124
43	75412
44	2171
45	23

[1, 2, 2, 3, 5, 2, 6, 14, 9, 4, 10, 44, 52, 26, 4, 20, 152, 366, 298, 62, 8, 36, 560, 2800, 4244, 1704, 205, 9, 72, 2144, 22028, 66184, 52740, 11228, 623, 18, 136, 8384, 175296, 1050896, 1679776, 701124, 75412, 2171, 23]

cp's OEIS Frontend

A368256 Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to horizontal and vertical reflections by a tile that is fixed under 180-degree rotation but not horizontal or vertical reflections.

Table of values

List of values