A072084 - cp's OEIS frontend

A072084 In prime factorization of n replace all primes with their numbers of 1's in binary representation.

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

[1, 1, 2, 1, 2, 2, 3, 1, 4, 2, 3, 2, 3, 3, 4, 1, 2, 4, 3, 2, 6, 3, 4, 2, 4, 3, 8, 3, 4, 4, 5, 1, 6, 2, 6, 4, 3, 3, 6, 2, 3, 6, 4, 3, 8, 4, 5, 2, 9, 4, 4, 3, 4, 8, 6, 3, 6, 4, 5, 4, 5, 5, 12, 1, 6, 6, 3, 2, 8, 6, 4, 4, 3, 3, 8, 3, 9, 6, 5, 2, 16, 3, 4, 6, 4, 4, 8, 3, 4, 8, 9, 4, 10, 5, 6]

cp's OEIS Frontend

A072084 In prime factorization of n replace all primes with their numbers of 1's in binary representation.

Table of values

List of values

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

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

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