A070306 - cp's OEIS frontend

A070306 a(n) = 2*phi(n)/2^omega(n).

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

[2, 1, 2, 2, 4, 1, 6, 4, 6, 2, 10, 2, 12, 3, 4, 8, 16, 3, 18, 4, 6, 5, 22, 4, 20, 6, 18, 6, 28, 2, 30, 16, 10, 8, 12, 6, 36, 9, 12, 8, 40, 3, 42, 10, 12, 11, 46, 8, 42, 10, 16, 12, 52, 9, 20, 12, 18, 14, 58, 4, 60, 15, 18, 32, 24, 5, 66, 16, 22, 6, 70, 12, 72, 18, 20, 18, 30, 6, 78, 16]

cp's OEIS Frontend

A070306 a(n) = 2*phi(n)/2^omega(n).

Table of values

List of values

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

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

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