A333050 - cp's OEIS frontend

A333050 a(1) = 1; a(n+1) = Sum_{d|n, gcd(d, n/d) = 1} a(d).

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	5
7	9
8	10
9	11
10	12
11	18
12	19
13	25
14	26
15	37
16	44
17	45
18	46
19	59
20	60
21	68
22	80
23	100
24	101
25	114
26	115
27	142
28	143
29	156
30	157
31	219
32	220
33	221
34	242
35	289
36	303
37	318
38	319
39	380
40	408
41	423
42	424
43	536
44	537
45	559
46	575
47	677
48	678
49	725
50	726
51	842
52	890
53	919
54	920
55	1064
56	1087
57	1107
58	1169
59	1327
60	1328

[1, 1, 2, 3, 4, 5, 9, 10, 11, 12, 18, 19, 25, 26, 37, 44, 45, 46, 59, 60, 68, 80, 100, 101, 114, 115, 142, 143, 156, 157, 219, 220, 221, 242, 289, 303, 318, 319, 380, 408, 423, 424, 536, 537, 559, 575, 677, 678, 725, 726, 842, 890, 919, 920, 1064, 1087, 1107, 1169, 1327, 1328]

cp's OEIS Frontend

A333050 a(1) = 1; a(n+1) = Sum_{d|n, gcd(d, n/d) = 1} a(d).

Table of values

List of values