A236757 - cp's OEIS frontend

A236757 Number T(n,k) of equivalence classes of ways of placing k 4 X 4 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=4, 0<=k<=floor(n/4)^2, read by rows.

n	a(n)
4	1
5	1
6	1
7	1
8	1
9	3
10	1
11	3
12	1
13	6
14	9
15	3
16	1
17	1
18	6
19	29
20	35
21	14
22	1
23	10
24	75
25	209
26	174
27	1
28	10
29	147
30	765
31	1234
32	1
33	15
34	270
35	2340
36	7639
37	6169
38	1893
39	242
40	17
41	1
42	1
43	15
44	438
45	5806
46	34342
47	79821
48	80722
49	36569
50	7106
51	459

[1, 1, 1, 1, 1, 3, 1, 3, 1, 6, 9, 3, 1, 1, 6, 29, 35, 14, 1, 10, 75, 209, 174, 1, 10, 147, 765, 1234, 1, 15, 270, 2340, 7639, 6169, 1893, 242, 17, 1, 1, 15, 438, 5806, 34342, 79821, 80722, 36569, 7106, 459]

cp's OEIS Frontend

A236757 Number T(n,k) of equivalence classes of ways of placing k 4 X 4 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=4, 0<=k<=floor(n/4)^2, read by rows.

Table of values

List of values