A238550 - cp's OEIS frontend

A238550 Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X 6 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=2, 0<=k<=3*floor(n/2), read by rows.

n	a(n)
2	1
3	3
4	4
5	1
6	1
7	3
8	8
9	3
10	1
11	6
12	23
13	33
14	22
15	6
16	1
17	1
18	6
19	40
20	101
21	125
22	54
23	10
24	1
25	9
26	68
27	262
28	534
29	532
30	276
31	74
32	12
33	1
34	1
35	9
36	98
37	509
38	1551
39	2505
40	2196
41	971
42	219
43	20
44	1
45	12
46	139
47	927
48	3731
49	8772
50	12069
51	9506
52	4366
53	1160
54	179
55	16
56	1
57	1
58	12
59	182
60	1479
61	7644
62	24024

[1, 3, 4, 1, 1, 3, 8, 3, 1, 6, 23, 33, 22, 6, 1, 1, 6, 40, 101, 125, 54, 10, 1, 9, 68, 262, 534, 532, 276, 74, 12, 1, 1, 9, 98, 509, 1551, 2505, 2196, 971, 219, 20, 1, 12, 139, 927, 3731, 8772, 12069, 9506, 4366, 1160, 179, 16, 1, 1, 12, 182, 1479, 7644, 24024]

cp's OEIS Frontend

A238550 Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X 6 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=2, 0<=k<=3*floor(n/2), read by rows.

Table of values

List of values