A238592 - cp's OEIS frontend

A238592 Number T(n,k) of equivalence classes of ways of placing k 3 X 3 tiles in an n X 10 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=3, 0<=k<=3*floor(n/3), read by rows.

n	a(n)
3	1
4	4
5	9
6	2
7	1
8	4
9	18
10	8
11	1
12	8
13	42
14	28
15	1
16	8
17	77
18	165
19	151
20	44
21	6
22	1
23	12
24	133
25	521
26	891
27	543
28	106
29	1
30	12
31	200
32	1160
33	3022
34	2756
35	824
36	1
37	16
38	288
39	2260
40	8443
41	13336
42	9364
43	2819
44	387
45	20
46	1
47	16
48	387
49	3867
50	19833
51	48418
52	58731
53	34797
54	9462
55	900

[1, 4, 9, 2, 1, 4, 18, 8, 1, 8, 42, 28, 1, 8, 77, 165, 151, 44, 6, 1, 12, 133, 521, 891, 543, 106, 1, 12, 200, 1160, 3022, 2756, 824, 1, 16, 288, 2260, 8443, 13336, 9364, 2819, 387, 20, 1, 16, 387, 3867, 19833, 48418, 58731, 34797, 9462, 900]

cp's OEIS Frontend

A238592 Number T(n,k) of equivalence classes of ways of placing k 3 X 3 tiles in an n X 10 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=3, 0<=k<=3*floor(n/3), read by rows.

Table of values

List of values