A293500 - cp's OEIS frontend

A293500 Number of orientable strings of length n using a maximum of k colors, array read by descending antidiagonals, T(n,k) for n >= 1 and k >= 1.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	0
8	3
9	2
10	0
11	0
12	6
13	9
14	6
15	0
16	0
17	10
18	24
19	36
20	12
21	0
22	0
23	15
24	50
25	120
26	108
27	28
28	0
29	0
30	21
31	90
32	300
33	480
34	351
35	56
36	0
37	0
38	28
39	147
40	630
41	1500
42	2016
43	1053
44	120
45	0
46	0
47	36
48	224
49	1176
50	3780
51	7750
52	8064
53	3240
54	240
55	0
56	0
57	45
58	324
59	2016
60	8232
61	23220
62	38750
63	32640
64	9720
65	496
66	0

[0, 0, 0, 0, 1, 0, 0, 3, 2, 0, 0, 6, 9, 6, 0, 0, 10, 24, 36, 12, 0, 0, 15, 50, 120, 108, 28, 0, 0, 21, 90, 300, 480, 351, 56, 0, 0, 28, 147, 630, 1500, 2016, 1053, 120, 0, 0, 36, 224, 1176, 3780, 7750, 8064, 3240, 240, 0, 0, 45, 324, 2016, 8232, 23220, 38750, 32640, 9720, 496, 0]

cp's OEIS Frontend

A293500 Number of orientable strings of length n using a maximum of k colors, array read by descending antidiagonals, T(n,k) for n >= 1 and k >= 1.

Table of values

List of values