A138328 - cp's OEIS frontend

A138328 Number of ways in which n can be represented as p+g, where p is a prime and g is a primitive root of p.

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

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

cp's OEIS Frontend

A138328 Number of ways in which n can be represented as p+g, where p is a prime and g is a primitive root of p.

Table of values

List of values

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

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

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