A318747 - cp's OEIS frontend

A318747 Number of Lyndon compositions (aperiodic necklaces of positive integers) with sum n and adjacent parts (including the last with the first part) being indivisible (either way).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	3
8	2
9	3
10	5
11	5
12	8
13	7
14	12
15	14
16	20
17	31
18	37
19	51
20	64
21	96
22	129
23	177
24	246
25	328
26	465
27	630
28	889
29	1230
30	1692
31	2370
32	3250
33	4587
34	6354
35	8895
36	12384
37	17252
38	24180
39	33777
40	47336
41	66254
42	92752
43	130142
44	182337
45	256246
46	359500
47	505231
48	709787
49	997951
50	1403883

[1, 1, 1, 1, 2, 1, 3, 2, 3, 5, 5, 8, 7, 12, 14, 20, 31, 37, 51, 64, 96, 129, 177, 246, 328, 465, 630, 889, 1230, 1692, 2370, 3250, 4587, 6354, 8895, 12384, 17252, 24180, 33777, 47336, 66254, 92752, 130142, 182337, 256246, 359500, 505231, 709787, 997951, 1403883]

cp's OEIS Frontend

A318747 Number of Lyndon compositions (aperiodic necklaces of positive integers) with sum n and adjacent parts (including the last with the first part) being indivisible (either way).

Table of values

List of values