A068920 - cp's OEIS frontend

A068920 Table of t(r,s) read by antidiagonals: t(r,s) is the number of ways to tile an r X s room with 1 X 2 Tatami mats. At most 3 Tatami mats may meet at a point.

n	a(n)
1	0
2	1
3	1
4	0
5	2
6	0
7	1
8	3
9	3
10	1
11	0
12	4
13	0
14	4
15	0
16	1
17	6
18	4
19	4
20	6
21	1
22	0
23	9
24	0
25	2
26	0
27	9
28	0
29	1
30	13
31	6
32	3
33	3
34	6
35	13
36	1
37	0
38	19
39	0
40	3
41	0
42	3
43	0
44	19
45	0
46	1
47	28
48	10
49	3
50	2
51	2
52	3
53	10
54	28
55	1
56	0
57	41
58	0
59	5
60	0
61	2
62	0
63	5
64	0
65	41
66	0
67	1
68	60
69	16
70	5
71	2
72	2
73	2
74	2
75	5
76	16
77	60
78	1
79	0
80	88
81	0
82	6
83	0
84	1
85	0
86	1
87	0
88	6
89	0
90	88
91	0
92	1
93	129
94	26

[0, 1, 1, 0, 2, 0, 1, 3, 3, 1, 0, 4, 0, 4, 0, 1, 6, 4, 4, 6, 1, 0, 9, 0, 2, 0, 9, 0, 1, 13, 6, 3, 3, 6, 13, 1, 0, 19, 0, 3, 0, 3, 0, 19, 0, 1, 28, 10, 3, 2, 2, 3, 10, 28, 1, 0, 41, 0, 5, 0, 2, 0, 5, 0, 41, 0, 1, 60, 16, 5, 2, 2, 2, 2, 5, 16, 60, 1, 0, 88, 0, 6, 0, 1, 0, 1, 0, 6, 0, 88, 0, 1, 129, 26]

cp's OEIS Frontend

A068920 Table of t(r,s) read by antidiagonals: t(r,s) is the number of ways to tile an r X s room with 1 X 2 Tatami mats. At most 3 Tatami mats may meet at a point.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	0
5	2
6	0
7	1
8	3
9	3
10	1
11	0
12	4
13	0
14	4
15	0
16	1
17	6
18	4
19	4
20	6
21	1
22	0
23	9
24	0
25	2
26	0
27	9
28	0
29	1
30	13
31	6
32	3
33	3
34	6
35	13
36	1
37	0
38	19
39	0
40	3
41	0
42	3
43	0
44	19
45	0
46	1
47	28
48	10
49	3
50	2
51	2
52	3
53	10
54	28
55	1
56	0
57	41
58	0
59	5
60	0
61	2
62	0
63	5
64	0
65	41
66	0
67	1
68	60
69	16
70	5
71	2
72	2
73	2
74	2
75	5
76	16
77	60
78	1
79	0
80	88
81	0
82	6
83	0
84	1
85	0
86	1
87	0
88	6
89	0
90	88
91	0
92	1
93	129
94	26

n	a(n)
1	0
2	1
3	1
4	0
5	2
6	0
7	1
8	3
9	3
10	1
11	0
12	4
13	0
14	4
15	0
16	1
17	6
18	4
19	4
20	6
21	1
22	0
23	9
24	0
25	2
26	0
27	9
28	0
29	1
30	13
31	6
32	3
33	3
34	6
35	13
36	1
37	0
38	19
39	0
40	3
41	0
42	3
43	0
44	19
45	0
46	1
47	28
48	10
49	3
50	2
51	2
52	3
53	10
54	28
55	1
56	0
57	41
58	0
59	5
60	0
61	2
62	0
63	5
64	0
65	41
66	0
67	1
68	60
69	16
70	5
71	2
72	2
73	2
74	2
75	5
76	16
77	60
78	1
79	0
80	88
81	0
82	6
83	0
84	1
85	0
86	1
87	0
88	6
89	0
90	88
91	0
92	1
93	129
94	26

n	a(n)
1	0
2	1
3	1
4	0
5	2
6	0
7	1
8	3
9	3
10	1
11	0
12	4
13	0
14	4
15	0
16	1
17	6
18	4
19	4
20	6
21	1
22	0
23	9
24	0
25	2
26	0
27	9
28	0
29	1
30	13
31	6
32	3
33	3
34	6
35	13
36	1
37	0
38	19
39	0
40	3
41	0
42	3
43	0
44	19
45	0
46	1
47	28
48	10
49	3
50	2
51	2
52	3
53	10
54	28
55	1
56	0
57	41
58	0
59	5
60	0
61	2
62	0
63	5
64	0
65	41
66	0
67	1
68	60
69	16
70	5
71	2
72	2
73	2
74	2
75	5
76	16
77	60
78	1
79	0
80	88
81	0
82	6
83	0
84	1
85	0
86	1
87	0
88	6
89	0
90	88
91	0
92	1
93	129
94	26