A340996 - cp's OEIS frontend

A340996 a(n) is the number of different primes that can be expressed as n mod p where p < n is prime.

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

[0, 0, 0, 0, 1, 0, 1, 2, 1, 1, 1, 2, 2, 2, 1, 3, 2, 3, 2, 3, 1, 3, 2, 5, 2, 4, 2, 4, 3, 4, 3, 3, 4, 3, 1, 6, 3, 4, 2, 6, 3, 6, 3, 5, 4, 5, 4, 7, 4, 6, 4, 5, 3, 8, 3, 5, 3, 6, 4, 9, 3, 6, 5, 8, 4, 7, 2, 6, 4, 8, 4, 9, 5, 7, 5, 8, 3, 9, 5, 7, 7, 7, 4, 10, 5, 6, 5, 7, 6, 12, 5, 7, 7, 7, 4, 11, 5, 9]

cp's OEIS Frontend

A340996 a(n) is the number of different primes that can be expressed as n mod p where p < n is prime.

Table of values

List of values

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

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

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