A065769 - cp's OEIS frontend

A065769 Prime cascade: multiplicative with a(prime(m)^k) = prime(m-1) * prime(m)^(k-1).

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

[1, 1, 2, 2, 3, 2, 5, 4, 6, 3, 7, 4, 11, 5, 6, 8, 13, 6, 17, 6, 10, 7, 19, 8, 15, 11, 18, 10, 23, 6, 29, 16, 14, 13, 15, 12, 31, 17, 22, 12, 37, 10, 41, 14, 18, 19, 43, 16, 35, 15, 26, 22, 47, 18, 21, 20, 34, 23, 53, 12, 59, 29, 30, 32, 33, 14, 61, 26, 38, 15, 67, 24, 71, 31, 30, 34]

cp's OEIS Frontend

A065769 Prime cascade: multiplicative with a(prime(m)^k) = prime(m-1) * prime(m)^(k-1).

Table of values

List of values

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

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

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