A072047 - cp's OEIS frontend

A072047 Number of prime factors of the squarefree numbers: omega(A005117(n)).

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	1
14	2
15	2
16	1
17	2
18	1
19	3
20	1
21	2
22	2
23	2
24	1
25	2
26	2
27	1
28	3
29	1
30	2
31	1
32	2
33	1
34	2
35	2
36	2
37	1
38	1
39	2
40	2
41	3
42	1
43	2
44	3
45	1
46	1
47	2
48	2
49	3
50	1
51	2
52	1
53	2
54	2
55	2
56	1
57	2
58	2
59	2
60	2
61	1
62	1
63	3
64	1
65	3
66	2
67	1
68	1
69	3
70	2
71	1
72	3
73	2
74	2
75	2
76	2
77	2
78	1
79	2
80	3
81	1
82	2
83	2
84	1
85	3
86	1
87	2

[0, 1, 1, 1, 2, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 3, 1, 2, 2, 2, 1, 2, 2, 1, 3, 1, 2, 1, 2, 1, 2, 2, 2, 1, 1, 2, 2, 3, 1, 2, 3, 1, 1, 2, 2, 3, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 1, 3, 1, 3, 2, 1, 1, 3, 2, 1, 3, 2, 2, 2, 2, 2, 1, 2, 3, 1, 2, 2, 1, 3, 1, 2]

cp's OEIS Frontend

A072047 Number of prime factors of the squarefree numbers: omega(A005117(n)).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	1
14	2
15	2
16	1
17	2
18	1
19	3
20	1
21	2
22	2
23	2
24	1
25	2
26	2
27	1
28	3
29	1
30	2
31	1
32	2
33	1
34	2
35	2
36	2
37	1
38	1
39	2
40	2
41	3
42	1
43	2
44	3
45	1
46	1
47	2
48	2
49	3
50	1
51	2
52	1
53	2
54	2
55	2
56	1
57	2
58	2
59	2
60	2
61	1
62	1
63	3
64	1
65	3
66	2
67	1
68	1
69	3
70	2
71	1
72	3
73	2
74	2
75	2
76	2
77	2
78	1
79	2
80	3
81	1
82	2
83	2
84	1
85	3
86	1
87	2

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	1
14	2
15	2
16	1
17	2
18	1
19	3
20	1
21	2
22	2
23	2
24	1
25	2
26	2
27	1
28	3
29	1
30	2
31	1
32	2
33	1
34	2
35	2
36	2
37	1
38	1
39	2
40	2
41	3
42	1
43	2
44	3
45	1
46	1
47	2
48	2
49	3
50	1
51	2
52	1
53	2
54	2
55	2
56	1
57	2
58	2
59	2
60	2
61	1
62	1
63	3
64	1
65	3
66	2
67	1
68	1
69	3
70	2
71	1
72	3
73	2
74	2
75	2
76	2
77	2
78	1
79	2
80	3
81	1
82	2
83	2
84	1
85	3
86	1
87	2

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	1
14	2
15	2
16	1
17	2
18	1
19	3
20	1
21	2
22	2
23	2
24	1
25	2
26	2
27	1
28	3
29	1
30	2
31	1
32	2
33	1
34	2
35	2
36	2
37	1
38	1
39	2
40	2
41	3
42	1
43	2
44	3
45	1
46	1
47	2
48	2
49	3
50	1
51	2
52	1
53	2
54	2
55	2
56	1
57	2
58	2
59	2
60	2
61	1
62	1
63	3
64	1
65	3
66	2
67	1
68	1
69	3
70	2
71	1
72	3
73	2
74	2
75	2
76	2
77	2
78	1
79	2
80	3
81	1
82	2
83	2
84	1
85	3
86	1
87	2