A230351 - cp's OEIS frontend

A230351 Number of ordered ways to write n = p + q (q > 0) with p, 2p^2 - 1 and 2q^2 - 1 all prime.

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

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

cp's OEIS Frontend

A230351 Number of ordered ways to write n = p + q (q > 0) with p, 2p^2 - 1 and 2q^2 - 1 all prime.

Table of values

List of values

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

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

cp's OEIS Frontend

A230351 Number of ordered ways to write n = p + q (q > 0) with p, 2*p^2 - 1 and 2*q^2 - 1 all prime.

Table of values

List of values

A230351 Number of ordered ways to write n = p + q (q > 0) with p, 2p^2 - 1 and 2q^2 - 1 all prime.

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