A245966 - cp's OEIS frontend

A245966 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 L-shaped tiles.

n	a(n)
0	1
1	1
2	1
3	4
4	1
5	8
6	2
7	1
8	12
9	20
10	1
11	16
12	54
13	16
14	1
15	20
16	104
17	112
18	4
19	1
20	24
21	170
22	352
23	108
24	1
25	28
26	252
27	800
28	664
29	48
30	1
31	32
32	350
33	1520
34	2280
35	704
36	8
37	1
38	36
39	464
40	2576
41	5820
42	4064
43	416
44	1
45	40
46	594
47	4032
48	12404
49	14784
50	4560
51	128
52	1
53	44
54	740
55	5952
56	23408
57	41104
58	25376
59	3200
60	16

[1, 1, 1, 4, 1, 8, 2, 1, 12, 20, 1, 16, 54, 16, 1, 20, 104, 112, 4, 1, 24, 170, 352, 108, 1, 28, 252, 800, 664, 48, 1, 32, 350, 1520, 2280, 704, 8, 1, 36, 464, 2576, 5820, 4064, 416, 1, 40, 594, 4032, 12404, 14784, 4560, 128, 1, 44, 740, 5952, 23408, 41104, 25376, 3200, 16]

cp's OEIS Frontend

A245966 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 L-shaped tiles.

Table of values

List of values