A328669 - cp's OEIS frontend

A328669 Number of Lyndon compositions of n where every pair of adjacent parts (including the last with the first) is relatively prime.

n	a(n)
1	1
2	0
3	1
4	2
5	4
6	6
7	11
8	18
9	31
10	52
11	93
12	157
13	278
14	479
15	846
16	1486
17	2646
18	4675
19	8348
20	14864
21	26629
22	47699
23	85777
24	154289
25	278317
26	502436
27	908879
28	1645712
29	2984545
30	5417742
31	9847188
32	17914493
33	32625522
34	59467892
35	108493133
36	198089609
37	361965237
38	661883230
39	1211161990

[1, 0, 1, 2, 4, 6, 11, 18, 31, 52, 93, 157, 278, 479, 846, 1486, 2646, 4675, 8348, 14864, 26629, 47699, 85777, 154289, 278317, 502436, 908879, 1645712, 2984545, 5417742, 9847188, 17914493, 32625522, 59467892, 108493133, 198089609, 361965237, 661883230, 1211161990]

cp's OEIS Frontend

A328669 Number of Lyndon compositions of n where every pair of adjacent parts (including the last with the first) is relatively prime.

Table of values

List of values