A328892 - cp's OEIS frontend

A328892 If n = Product (p_j^k_j) then a(n) = Sum (2^(k_j - 1)).

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

[0, 1, 1, 2, 1, 2, 1, 4, 2, 2, 1, 3, 1, 2, 2, 8, 1, 3, 1, 3, 2, 2, 1, 5, 2, 2, 4, 3, 1, 3, 1, 16, 2, 2, 2, 4, 1, 2, 2, 5, 1, 3, 1, 3, 3, 2, 1, 9, 2, 3, 2, 3, 1, 5, 2, 5, 2, 2, 1, 4, 1, 2, 3, 32, 2, 3, 1, 3, 2, 3, 1, 6, 1, 2, 3, 3, 2, 3, 1, 9, 8, 2, 1, 4, 2, 2, 2, 5, 1, 4]

cp's OEIS Frontend

A328892 If n = Product (p_j^k_j) then a(n) = Sum (2^(k_j - 1)).

Table of values

List of values

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

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

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