A248011 - cp's OEIS frontend

A248011 Table T(n,k), n>=1, k>=1, read by antidiagonals: T(n,k) = number of equivalence classes of ways of placing three 1 X 1 tiles in an n X k rectangle under all symmetry operations of the rectangle.

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	2
8	6
9	6
10	2
11	6
12	14
13	27
14	14
15	6
16	10
17	32
18	60
19	60
20	32
21	10
22	19
23	55
24	129
25	140
26	129
27	55
28	19
29	28
30	94
31	218
32	294
33	294
34	218
35	94
36	28
37	44
38	140
39	363
40	506
41	608
42	506
43	363
44	140
45	44
46	60
47	208
48	536
49	832
50	1038
51	1038
52	832
53	536
54	208
55	60
56	85
57	285
58	785
59	1240
60	1695

[0, 0, 0, 1, 1, 1, 2, 6, 6, 2, 6, 14, 27, 14, 6, 10, 32, 60, 60, 32, 10, 19, 55, 129, 140, 129, 55, 19, 28, 94, 218, 294, 294, 218, 94, 28, 44, 140, 363, 506, 608, 506, 363, 140, 44, 60, 208, 536, 832, 1038, 1038, 832, 536, 208, 60, 85, 285, 785, 1240, 1695]

cp's OEIS Frontend

A248011 Table T(n,k), n>=1, k>=1, read by antidiagonals: T(n,k) = number of equivalence classes of ways of placing three 1 X 1 tiles in an n X k rectangle under all symmetry operations of the rectangle.

Table of values

List of values