A337665 - cp's OEIS frontend

A337665 Number of compositions of n whose distinct parts are pairwise coprime, where a singleton is not considered coprime unless it is (1).

n	a(n)
0	0
1	1
2	1
3	3
4	6
5	15
6	27
7	57
8	108
9	208
10	393
11	749
12	1415
13	2687
14	5076
15	9583
16	18088
17	34156
18	64511
19	121898
20	230368
21	435460
22	823376
23	1557420
24	2946931
25	5578109
26	10561987
27	20005126
28	37902509
29	71832372
30	136173266
31	258211602
32	489738622
33	929074445
34	1762899107
35	3345713031

[0, 1, 1, 3, 6, 15, 27, 57, 108, 208, 393, 749, 1415, 2687, 5076, 9583, 18088, 34156, 64511, 121898, 230368, 435460, 823376, 1557420, 2946931, 5578109, 10561987, 20005126, 37902509, 71832372, 136173266, 258211602, 489738622, 929074445, 1762899107, 3345713031]

cp's OEIS Frontend

A337665 Number of compositions of n whose distinct parts are pairwise coprime, where a singleton is not considered coprime unless it is (1).

Table of values

List of values