A069352 - cp's OEIS frontend

A069352 Total number of prime factors of 3-smooth numbers.

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	3
7	2
8	3
9	4
10	3
11	4
12	3
13	5
14	4
15	5
16	4
17	6
18	5
19	4
20	6
21	5
22	7
23	6
24	5
25	7
26	6
27	5
28	8
29	7
30	6
31	8
32	7
33	6
34	9
35	8
36	7
37	6
38	9
39	8
40	7
41	10
42	9
43	8
44	7
45	10
46	9
47	8
48	11
49	7
50	10
51	9
52	8
53	11
54	10
55	9
56	12
57	8
58	11
59	10
60	9
61	12
62	8
63	11
64	10
65	13
66	9
67	12
68	11
69	10
70	13
71	9
72	12
73	11
74	14
75	10
76	13
77	9
78	12
79	11
80	14
81	10
82	13
83	12
84	15
85	11

[0, 1, 1, 2, 2, 3, 2, 3, 4, 3, 4, 3, 5, 4, 5, 4, 6, 5, 4, 6, 5, 7, 6, 5, 7, 6, 5, 8, 7, 6, 8, 7, 6, 9, 8, 7, 6, 9, 8, 7, 10, 9, 8, 7, 10, 9, 8, 11, 7, 10, 9, 8, 11, 10, 9, 12, 8, 11, 10, 9, 12, 8, 11, 10, 13, 9, 12, 11, 10, 13, 9, 12, 11, 14, 10, 13, 9, 12, 11, 14, 10, 13, 12, 15, 11]

cp's OEIS Frontend

A069352 Total number of prime factors of 3-smooth numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	3
7	2
8	3
9	4
10	3
11	4
12	3
13	5
14	4
15	5
16	4
17	6
18	5
19	4
20	6
21	5
22	7
23	6
24	5
25	7
26	6
27	5
28	8
29	7
30	6
31	8
32	7
33	6
34	9
35	8
36	7
37	6
38	9
39	8
40	7
41	10
42	9
43	8
44	7
45	10
46	9
47	8
48	11
49	7
50	10
51	9
52	8
53	11
54	10
55	9
56	12
57	8
58	11
59	10
60	9
61	12
62	8
63	11
64	10
65	13
66	9
67	12
68	11
69	10
70	13
71	9
72	12
73	11
74	14
75	10
76	13
77	9
78	12
79	11
80	14
81	10
82	13
83	12
84	15
85	11

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	3
7	2
8	3
9	4
10	3
11	4
12	3
13	5
14	4
15	5
16	4
17	6
18	5
19	4
20	6
21	5
22	7
23	6
24	5
25	7
26	6
27	5
28	8
29	7
30	6
31	8
32	7
33	6
34	9
35	8
36	7
37	6
38	9
39	8
40	7
41	10
42	9
43	8
44	7
45	10
46	9
47	8
48	11
49	7
50	10
51	9
52	8
53	11
54	10
55	9
56	12
57	8
58	11
59	10
60	9
61	12
62	8
63	11
64	10
65	13
66	9
67	12
68	11
69	10
70	13
71	9
72	12
73	11
74	14
75	10
76	13
77	9
78	12
79	11
80	14
81	10
82	13
83	12
84	15
85	11

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	3
7	2
8	3
9	4
10	3
11	4
12	3
13	5
14	4
15	5
16	4
17	6
18	5
19	4
20	6
21	5
22	7
23	6
24	5
25	7
26	6
27	5
28	8
29	7
30	6
31	8
32	7
33	6
34	9
35	8
36	7
37	6
38	9
39	8
40	7
41	10
42	9
43	8
44	7
45	10
46	9
47	8
48	11
49	7
50	10
51	9
52	8
53	11
54	10
55	9
56	12
57	8
58	11
59	10
60	9
61	12
62	8
63	11
64	10
65	13
66	9
67	12
68	11
69	10
70	13
71	9
72	12
73	11
74	14
75	10
76	13
77	9
78	12
79	11
80	14
81	10
82	13
83	12
84	15
85	11