A238583 - cp's OEIS frontend

A238583 Number T(n,k) of equivalence classes of ways of placing k 4 X 4 tiles in an n X 9 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=4, 0<=k<=2*floor(n/4), read by rows.

n	a(n)
4	1
5	3
6	2
7	1
8	3
9	4
10	1
11	6
12	9
13	1
14	6
15	14
16	1
17	9
18	32
19	18
20	4
21	1
22	9
23	55
24	65
25	23
26	1
27	12
28	91
29	164
30	87
31	1
32	12
33	132
34	320
35	229
36	1
37	15
38	186
39	608
40	648
41	134
42	10
43	1
44	15
45	245
46	1043
47	1633
48	770
49	106
50	1
51	18
52	317
53	1736
54	3659
55	2800
56	646
57	1
58	18
59	394
60	2666
61	7247
62	7572
63	2510

[1, 3, 2, 1, 3, 4, 1, 6, 9, 1, 6, 14, 1, 9, 32, 18, 4, 1, 9, 55, 65, 23, 1, 12, 91, 164, 87, 1, 12, 132, 320, 229, 1, 15, 186, 608, 648, 134, 10, 1, 15, 245, 1043, 1633, 770, 106, 1, 18, 317, 1736, 3659, 2800, 646, 1, 18, 394, 2666, 7247, 7572, 2510]

cp's OEIS Frontend

A238583 Number T(n,k) of equivalence classes of ways of placing k 4 X 4 tiles in an n X 9 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=4, 0<=k<=2*floor(n/4), read by rows.

Table of values

List of values