A380594 - cp's OEIS frontend

A380594 a(n) is the number of positive integers having 2*n primitive roots.

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

[6, 4, 4, 6, 2, 8, 0, 4, 2, 2, 2, 8, 0, 2, 0, 4, 0, 4, 0, 12, 0, 2, 0, 12, 0, 2, 4, 0, 0, 2, 0, 6, 0, 0, 0, 10, 0, 0, 0, 2, 2, 6, 0, 4, 0, 2, 0, 12, 0, 2, 0, 0, 0, 4, 0, 6, 0, 0, 0, 10, 0, 0, 0, 6, 2, 2, 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 0, 2, 0, 8, 4, 2, 0, 6, 0]

cp's OEIS Frontend

A380594 a(n) is the number of positive integers having 2*n primitive roots.

Table of values

List of values

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

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

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