A080773 - cp's OEIS frontend

A080773 In binary representation: sum of number of 1's in prime factors of n (with repetition).

n	a(n)
1	0
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	4
10	3
11	3
12	4
13	3
14	4
15	4
16	4
17	2
18	5
19	3
20	4
21	5
22	4
23	4
24	5
25	4
26	4
27	6
28	5
29	4
30	5
31	5
32	5
33	5
34	3
35	5
36	6
37	3
38	4
39	5
40	5
41	3
42	6
43	4
44	5
45	6
46	5
47	5
48	6
49	6
50	5
51	4
52	5
53	4
54	7
55	5
56	6
57	5
58	5
59	5
60	6
61	5
62	6
63	7
64	6
65	5
66	6
67	3
68	4
69	6
70	6
71	4
72	7
73	3
74	4
75	6
76	5
77	6
78	6
79	5
80	6
81	8
82	4
83	4
84	7
85	4
86	5
87	6
88	6
89	4
90	7
91	6
92	6
93	7
94	6
95	5
96	7
97	3
98	7
99	7
100	6
101	4
102	5
103	5
104	6
105	7

[0, 1, 2, 2, 2, 3, 3, 3, 4, 3, 3, 4, 3, 4, 4, 4, 2, 5, 3, 4, 5, 4, 4, 5, 4, 4, 6, 5, 4, 5, 5, 5, 5, 3, 5, 6, 3, 4, 5, 5, 3, 6, 4, 5, 6, 5, 5, 6, 6, 5, 4, 5, 4, 7, 5, 6, 5, 5, 5, 6, 5, 6, 7, 6, 5, 6, 3, 4, 6, 6, 4, 7, 3, 4, 6, 5, 6, 6, 5, 6, 8, 4, 4, 7, 4, 5, 6, 6, 4, 7, 6, 6, 7, 6, 5, 7, 3, 7, 7, 6, 4, 5, 5, 6, 7]

cp's OEIS Frontend

A080773 In binary representation: sum of number of 1's in prime factors of n (with repetition).

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	4
10	3
11	3
12	4
13	3
14	4
15	4
16	4
17	2
18	5
19	3
20	4
21	5
22	4
23	4
24	5
25	4
26	4
27	6
28	5
29	4
30	5
31	5
32	5
33	5
34	3
35	5
36	6
37	3
38	4
39	5
40	5
41	3
42	6
43	4
44	5
45	6
46	5
47	5
48	6
49	6
50	5
51	4
52	5
53	4
54	7
55	5
56	6
57	5
58	5
59	5
60	6
61	5
62	6
63	7
64	6
65	5
66	6
67	3
68	4
69	6
70	6
71	4
72	7
73	3
74	4
75	6
76	5
77	6
78	6
79	5
80	6
81	8
82	4
83	4
84	7
85	4
86	5
87	6
88	6
89	4
90	7
91	6
92	6
93	7
94	6
95	5
96	7
97	3
98	7
99	7
100	6
101	4
102	5
103	5
104	6
105	7

n	a(n)
1	0
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	4
10	3
11	3
12	4
13	3
14	4
15	4
16	4
17	2
18	5
19	3
20	4
21	5
22	4
23	4
24	5
25	4
26	4
27	6
28	5
29	4
30	5
31	5
32	5
33	5
34	3
35	5
36	6
37	3
38	4
39	5
40	5
41	3
42	6
43	4
44	5
45	6
46	5
47	5
48	6
49	6
50	5
51	4
52	5
53	4
54	7
55	5
56	6
57	5
58	5
59	5
60	6
61	5
62	6
63	7
64	6
65	5
66	6
67	3
68	4
69	6
70	6
71	4
72	7
73	3
74	4
75	6
76	5
77	6
78	6
79	5
80	6
81	8
82	4
83	4
84	7
85	4
86	5
87	6
88	6
89	4
90	7
91	6
92	6
93	7
94	6
95	5
96	7
97	3
98	7
99	7
100	6
101	4
102	5
103	5
104	6
105	7

n	a(n)
1	0
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	4
10	3
11	3
12	4
13	3
14	4
15	4
16	4
17	2
18	5
19	3
20	4
21	5
22	4
23	4
24	5
25	4
26	4
27	6
28	5
29	4
30	5
31	5
32	5
33	5
34	3
35	5
36	6
37	3
38	4
39	5
40	5
41	3
42	6
43	4
44	5
45	6
46	5
47	5
48	6
49	6
50	5
51	4
52	5
53	4
54	7
55	5
56	6
57	5
58	5
59	5
60	6
61	5
62	6
63	7
64	6
65	5
66	6
67	3
68	4
69	6
70	6
71	4
72	7
73	3
74	4
75	6
76	5
77	6
78	6
79	5
80	6
81	8
82	4
83	4
84	7
85	4
86	5
87	6
88	6
89	4
90	7
91	6
92	6
93	7
94	6
95	5
96	7
97	3
98	7
99	7
100	6
101	4
102	5
103	5
104	6
105	7