A232440 - cp's OEIS frontend

A232440 Number T(n,k) of equivalence classes of ways of placing k 5 X 5 tiles in an n X 5 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=5, 0<=k<=floor(n/5), read by rows.

n	a(n)
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	3
15	1
16	3
17	1
18	1
19	4
20	2
21	1
22	4
23	4
24	1
25	5
26	6
27	1
28	5
29	9
30	1
31	6
32	12
33	1
34	1
35	6
36	16
37	2
38	1
39	7
40	20
41	6
42	1
43	7
44	25
45	10
46	1
47	8
48	30
49	19
50	1
51	8
52	36
53	28
54	1
55	1
56	9
57	42
58	44
59	3
60	1
61	9
62	49
63	60
64	9
65	1
66	10
67	56
68	85
69	19
70	1
71	10
72	64
73	110
74	38
75	1
76	11
77	72
78	146
79	66
80	1

[1, 1, 1, 1, 1, 2, 1, 2, 1, 3, 1, 3, 1, 1, 4, 2, 1, 4, 4, 1, 5, 6, 1, 5, 9, 1, 6, 12, 1, 1, 6, 16, 2, 1, 7, 20, 6, 1, 7, 25, 10, 1, 8, 30, 19, 1, 8, 36, 28, 1, 1, 9, 42, 44, 3, 1, 9, 49, 60, 9, 1, 10, 56, 85, 19, 1, 10, 64, 110, 38, 1, 11, 72, 146, 66, 1]

cp's OEIS Frontend

A232440 Number T(n,k) of equivalence classes of ways of placing k 5 X 5 tiles in an n X 5 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=5, 0<=k<=floor(n/5), read by rows.

Table of values

List of values

n	a(n)
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	3
15	1
16	3
17	1
18	1
19	4
20	2
21	1
22	4
23	4
24	1
25	5
26	6
27	1
28	5
29	9
30	1
31	6
32	12
33	1
34	1
35	6
36	16
37	2
38	1
39	7
40	20
41	6
42	1
43	7
44	25
45	10
46	1
47	8
48	30
49	19
50	1
51	8
52	36
53	28
54	1
55	1
56	9
57	42
58	44
59	3
60	1
61	9
62	49
63	60
64	9
65	1
66	10
67	56
68	85
69	19
70	1
71	10
72	64
73	110
74	38
75	1
76	11
77	72
78	146
79	66
80	1

n	a(n)
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	3
15	1
16	3
17	1
18	1
19	4
20	2
21	1
22	4
23	4
24	1
25	5
26	6
27	1
28	5
29	9
30	1
31	6
32	12
33	1
34	1
35	6
36	16
37	2
38	1
39	7
40	20
41	6
42	1
43	7
44	25
45	10
46	1
47	8
48	30
49	19
50	1
51	8
52	36
53	28
54	1
55	1
56	9
57	42
58	44
59	3
60	1
61	9
62	49
63	60
64	9
65	1
66	10
67	56
68	85
69	19
70	1
71	10
72	64
73	110
74	38
75	1
76	11
77	72
78	146
79	66
80	1

n	a(n)
5	1
6	1
7	1
8	1
9	1
10	2
11	1
12	2
13	1
14	3
15	1
16	3
17	1
18	1
19	4
20	2
21	1
22	4
23	4
24	1
25	5
26	6
27	1
28	5
29	9
30	1
31	6
32	12
33	1
34	1
35	6
36	16
37	2
38	1
39	7
40	20
41	6
42	1
43	7
44	25
45	10
46	1
47	8
48	30
49	19
50	1
51	8
52	36
53	28
54	1
55	1
56	9
57	42
58	44
59	3
60	1
61	9
62	49
63	60
64	9
65	1
66	10
67	56
68	85
69	19
70	1
71	10
72	64
73	110
74	38
75	1
76	11
77	72
78	146
79	66
80	1