A248059 - cp's OEIS frontend

A248059 Table T(n,k), n>=1, k>=1, read by antidiagonals: T(n,k) = number of equivalence classes of ways of placing four 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	0
5	1
6	0
7	1
8	6
9	6
10	1
11	3
12	22
13	39
14	22
15	3
16	9
17	60
18	139
19	139
20	60
21	9
22	19
23	135
24	371
25	476
26	371
27	135
28	19
29	38
30	266
31	813
32	1253
33	1253
34	813
35	266
36	38
37	66
38	476
39	1574
40	2706
41	3254
42	2706
43	1574
44	476
45	66
46	110
47	792
48	2770
49	5199
50	6969
51	6969
52	5199
53	2770
54	792
55	110
56	170
57	1245

[0, 0, 0, 0, 1, 0, 1, 6, 6, 1, 3, 22, 39, 22, 3, 9, 60, 139, 139, 60, 9, 19, 135, 371, 476, 371, 135, 19, 38, 266, 813, 1253, 1253, 813, 266, 38, 66, 476, 1574, 2706, 3254, 2706, 1574, 476, 66, 110, 792, 2770, 5199, 6969, 6969, 5199, 2770, 792, 110, 170, 1245]

cp's OEIS Frontend

A248059 Table T(n,k), n>=1, k>=1, read by antidiagonals: T(n,k) = number of equivalence classes of ways of placing four 1 X 1 tiles in an n X k rectangle under all symmetry operations of the rectangle.

Table of values

List of values