A005515 - cp's OEIS frontend

A005515 Number of n-bead bracelets (turnover necklaces) of two colors with 10 red beads and n-10 black beads.

n	a(n)
10	1
11	1
12	6
13	14
14	47
15	111
16	280
17	600
18	1282
19	2494
20	4752
21	8524
22	14938
23	25102
24	41272
25	65772
26	102817
27	156871
28	235378
29	346346
30	502303
31	716859
32	1010256
33	1404624
34	1931540
35	2625658
36	3534776
37	4711448
38	6226148
39	8156396
40	10603704
41	13679696
42	17527595
43	22304765
44	28209566
45	35459694

[1, 1, 6, 14, 47, 111, 280, 600, 1282, 2494, 4752, 8524, 14938, 25102, 41272, 65772, 102817, 156871, 235378, 346346, 502303, 716859, 1010256, 1404624, 1931540, 2625658, 3534776, 4711448, 6226148, 8156396, 10603704, 13679696, 17527595, 22304765, 28209566, 35459694]

cp's OEIS Frontend

A005515 Number of n-bead bracelets (turnover necklaces) of two colors with 10 red beads and n-10 black beads.

Table of values

List of values