A219558 - cp's OEIS frontend

A219558 Number of odd prime pairs {p,q} (p>q) such that p+(1+(n mod 2))q=n and ((p-1-(n mod 2))/q)=((q+1)/p)=1 where (-) denotes the Legendre symbol.

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

[0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 1, 0, 0, 3, 0, 2, 0, 1, 1, 1, 1, 2, 2, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 3, 0, 1, 1, 1, 0, 1, 1, 2, 1, 1, 2, 0, 0, 2, 1, 2, 1, 1, 0, 1, 1, 2, 2, 3, 0, 0, 0, 0]

cp's OEIS Frontend

A219558 Number of odd prime pairs {p,q} (p>q) such that p+(1+(n mod 2))q=n and ((p-1-(n mod 2))/q)=((q+1)/p)=1 where (-) denotes the Legendre symbol.

Table of values

List of values

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

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

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