A350399 - cp's OEIS frontend

A350399 a(n) is the number of prime pairs (p,q) with p <= q, p+q = 2n, and pq mod (2*n) prime.

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

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

cp's OEIS Frontend

A350399 a(n) is the number of prime pairs (p,q) with p <= q, p+q = 2n, and pq mod (2*n) prime.

Table of values

List of values

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

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

cp's OEIS Frontend

A350399 a(n) is the number of prime pairs (p,q) with p <= q, p+q = 2*n, and p*q mod (2*n) prime.

Table of values

List of values

A350399 a(n) is the number of prime pairs (p,q) with p <= q, p+q = 2n, and pq mod (2*n) prime.

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