A235187 - cp's OEIS frontend

A235187 Number of ordered ways to write 2*n = p + q with p, q and prime(p) + q - 1 all prime.

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

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

cp's OEIS Frontend

A235187 Number of ordered ways to write 2*n = p + q with p, q and prime(p) + q - 1 all prime.

Table of values

List of values

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

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

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