A380635 - cp's OEIS frontend

A380635 a(1) = 1; a(n+1) = Sum_{d^2|n} a(n/d^2).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	3
10	4
11	4
12	4
13	5
14	5
15	5
16	5
17	7
18	7
19	8
20	8
21	10
22	10
23	10
24	10
25	12
26	13
27	13
28	14
29	16
30	16
31	16
32	16
33	19
34	19
35	19
36	19
37	24
38	24
39	24
40	24
41	28
42	28
43	28
44	28
45	32
46	34
47	34
48	34
49	39
50	40
51	41
52	41
53	46
54	46
55	48
56	48
57	53
58	53
59	53
60	53
61	58
62	58
63	58
64	60
65	67
66	67
67	67
68	67
69	74
70	74
71	74
72	74
73	84
74	84
75	84
76	85
77	93
78	93
79	93
80	93

[1, 1, 1, 1, 2, 2, 2, 2, 3, 4, 4, 4, 5, 5, 5, 5, 7, 7, 8, 8, 10, 10, 10, 10, 12, 13, 13, 14, 16, 16, 16, 16, 19, 19, 19, 19, 24, 24, 24, 24, 28, 28, 28, 28, 32, 34, 34, 34, 39, 40, 41, 41, 46, 46, 48, 48, 53, 53, 53, 53, 58, 58, 58, 60, 67, 67, 67, 67, 74, 74, 74, 74, 84, 84, 84, 85, 93, 93, 93, 93]

cp's OEIS Frontend

A380635 a(1) = 1; a(n+1) = Sum_{d^2|n} a(n/d^2).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	3
10	4
11	4
12	4
13	5
14	5
15	5
16	5
17	7
18	7
19	8
20	8
21	10
22	10
23	10
24	10
25	12
26	13
27	13
28	14
29	16
30	16
31	16
32	16
33	19
34	19
35	19
36	19
37	24
38	24
39	24
40	24
41	28
42	28
43	28
44	28
45	32
46	34
47	34
48	34
49	39
50	40
51	41
52	41
53	46
54	46
55	48
56	48
57	53
58	53
59	53
60	53
61	58
62	58
63	58
64	60
65	67
66	67
67	67
68	67
69	74
70	74
71	74
72	74
73	84
74	84
75	84
76	85
77	93
78	93
79	93
80	93

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	3
10	4
11	4
12	4
13	5
14	5
15	5
16	5
17	7
18	7
19	8
20	8
21	10
22	10
23	10
24	10
25	12
26	13
27	13
28	14
29	16
30	16
31	16
32	16
33	19
34	19
35	19
36	19
37	24
38	24
39	24
40	24
41	28
42	28
43	28
44	28
45	32
46	34
47	34
48	34
49	39
50	40
51	41
52	41
53	46
54	46
55	48
56	48
57	53
58	53
59	53
60	53
61	58
62	58
63	58
64	60
65	67
66	67
67	67
68	67
69	74
70	74
71	74
72	74
73	84
74	84
75	84
76	85
77	93
78	93
79	93
80	93

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	3
10	4
11	4
12	4
13	5
14	5
15	5
16	5
17	7
18	7
19	8
20	8
21	10
22	10
23	10
24	10
25	12
26	13
27	13
28	14
29	16
30	16
31	16
32	16
33	19
34	19
35	19
36	19
37	24
38	24
39	24
40	24
41	28
42	28
43	28
44	28
45	32
46	34
47	34
48	34
49	39
50	40
51	41
52	41
53	46
54	46
55	48
56	48
57	53
58	53
59	53
60	53
61	58
62	58
63	58
64	60
65	67
66	67
67	67
68	67
69	74
70	74
71	74
72	74
73	84
74	84
75	84
76	85
77	93
78	93
79	93
80	93