A068923 - cp's OEIS frontend

A068923 Number of ways to tile a 4 X n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point.

n	a(n)
1	1
2	4
3	4
4	2
5	3
6	3
7	3
8	5
9	5
10	6
11	8
12	8
13	11
14	13
15	14
16	19
17	21
18	25
19	32
20	35
21	44
22	53
23	60
24	76
25	88
26	104
27	129
28	148
29	180
30	217
31	252
32	309
33	365
34	432
35	526
36	617
37	741
38	891
39	1049
40	1267
41	1508
42	1790
43	2158
44	2557
45	3057
46	3666
47	4347
48	5215
49	6223
50	7404
51	8881
52	10570
53	12619
54	15104
55	17974

[1, 4, 4, 2, 3, 3, 3, 5, 5, 6, 8, 8, 11, 13, 14, 19, 21, 25, 32, 35, 44, 53, 60, 76, 88, 104, 129, 148, 180, 217, 252, 309, 365, 432, 526, 617, 741, 891, 1049, 1267, 1508, 1790, 2158, 2557, 3057, 3666, 4347, 5215, 6223, 7404, 8881, 10570, 12619, 15104, 17974]

cp's OEIS Frontend

A068923 Number of ways to tile a 4 X n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point.

Table of values

List of values