A051026 - cp's OEIS frontend

A051026 Number of primitive subsequences of {1, 2, ..., n}.

n	a(n)
0	1
1	2
2	3
3	5
4	7
5	13
6	17
7	33
8	45
9	73
10	103
11	205
12	253
13	505
14	733
15	1133
16	1529
17	3057
18	3897
19	7793
20	10241
21	16513
22	24593
23	49185
24	59265
25	109297
26	163369
27	262489
28	355729
29	711457
30	879937
31	1759873
32	2360641
33	3908545
34	5858113
35	10534337
36	12701537
37	25403073
38	38090337
39	63299265
40	81044097
41	162088193
42	205482593
43	410965185
44	570487233
45	855676353

[1, 2, 3, 5, 7, 13, 17, 33, 45, 73, 103, 205, 253, 505, 733, 1133, 1529, 3057, 3897, 7793, 10241, 16513, 24593, 49185, 59265, 109297, 163369, 262489, 355729, 711457, 879937, 1759873, 2360641, 3908545, 5858113, 10534337, 12701537, 25403073, 38090337, 63299265, 81044097, 162088193, 205482593, 410965185, 570487233, 855676353]

cp's OEIS Frontend

A051026 Number of primitive subsequences of {1, 2, ..., n}.

Table of values

List of values