A245965 - cp's OEIS frontend

A245965 Triangle read by rows: T(n,k) is the number of tilings of a 2 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares) that have k 1 X 1 tiles.

n	a(n)
0	1
1	0
2	0
3	1
4	0
5	4
6	0
7	0
8	1
9	2
10	0
11	0
12	8
13	0
14	0
15	1
16	0
17	0
18	20
19	0
20	0
21	12
22	0
23	0
24	1
25	0
26	16
27	0
28	0
29	54
30	0
31	0
32	16
33	0
34	0
35	1
36	4
37	0
38	0
39	112
40	0
41	0
42	104
43	0
44	0
45	20
46	0
47	0
48	1
49	0
50	0
51	108
52	0
53	0
54	352
55	0
56	0
57	170
58	0
59	0
60	24
61	0
62	0
63	1
64	0
65	48
66	0
67	0
68	664
69	0
70	0
71	800
72	0
73	0
74	252
75	0
76	0
77	28
78	0
79	0
80	1
81	8
82	0
83	0
84	704
85	0
86	0
87	2280
88	0
89	0
90	1520
91	0
92	0
93	350
94	0
95	0
96	32
97	0
98	0
99	1
100	0
101	0
102	416
103	0
104	0
105	4064
106	0
107	0
108	5820
109	0
110	0
111	2576
112	0
113	0
114	464
115	0
116	0
117	36
118	0
119	0
120	1

[1, 0, 0, 1, 0, 4, 0, 0, 1, 2, 0, 0, 8, 0, 0, 1, 0, 0, 20, 0, 0, 12, 0, 0, 1, 0, 16, 0, 0, 54, 0, 0, 16, 0, 0, 1, 4, 0, 0, 112, 0, 0, 104, 0, 0, 20, 0, 0, 1, 0, 0, 108, 0, 0, 352, 0, 0, 170, 0, 0, 24, 0, 0, 1, 0, 48, 0, 0, 664, 0, 0, 800, 0, 0, 252, 0, 0, 28, 0, 0, 1, 8, 0, 0, 704, 0, 0, 2280, 0, 0, 1520, 0, 0, 350, 0, 0, 32, 0, 0, 1, 0, 0, 416, 0, 0, 4064, 0, 0, 5820, 0, 0, 2576, 0, 0, 464, 0, 0, 36, 0, 0, 1]

cp's OEIS Frontend

A245965 Triangle read by rows: T(n,k) is the number of tilings of a 2 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares) that have k 1 X 1 tiles.

Table of values

List of values