A114231 - cp's OEIS frontend

A114231 Smallest number m such that prime(n) + 2*prime(n-m) is a prime.

n	a(n)
2	1
3	1
4	1
5	3
6	3
7	1
8	1
9	1
10	2
11	1
12	3
13	2
14	4
15	4
16	2
17	9
18	1
19	3
20	2
21	4
22	5
23	1
24	5
25	2
26	8
27	3
28	1
29	3
30	1
31	1
32	3
33	8
34	2
35	6
36	1
37	4
38	3
39	8
40	2
41	7
42	7
43	14
44	9
45	7
46	1
47	4
48	3
49	1
50	1
51	1
52	5
53	1
54	1
55	2
56	8
57	4
58	1
59	8
60	2
61	4
62	1
63	8
64	3
65	9
66	5
67	3
68	2
69	1
70	4
71	1
72	4
73	4
74	2
75	3
76	2
77	4
78	2
79	12
80	3
81	1
82	1
83	3
84	12
85	2
86	1
87	2
88	5
89	5
90	3
91	3
92	10
93	4
94	19
95	1
96	6
97	4
98	8
99	7
100	2
101	5
102	9
103	2
104	3

[1, 1, 1, 3, 3, 1, 1, 1, 2, 1, 3, 2, 4, 4, 2, 9, 1, 3, 2, 4, 5, 1, 5, 2, 8, 3, 1, 3, 1, 1, 3, 8, 2, 6, 1, 4, 3, 8, 2, 7, 7, 14, 9, 7, 1, 4, 3, 1, 1, 1, 5, 1, 1, 2, 8, 4, 1, 8, 2, 4, 1, 8, 3, 9, 5, 3, 2, 1, 4, 1, 4, 4, 2, 3, 2, 4, 2, 12, 3, 1, 1, 3, 12, 2, 1, 2, 5, 5, 3, 3, 10, 4, 19, 1, 6, 4, 8, 7, 2, 5, 9, 2, 3]

cp's OEIS Frontend

A114231 Smallest number m such that prime(n) + 2*prime(n-m) is a prime.

Table of values

List of values

n	a(n)
2	1
3	1
4	1
5	3
6	3
7	1
8	1
9	1
10	2
11	1
12	3
13	2
14	4
15	4
16	2
17	9
18	1
19	3
20	2
21	4
22	5
23	1
24	5
25	2
26	8
27	3
28	1
29	3
30	1
31	1
32	3
33	8
34	2
35	6
36	1
37	4
38	3
39	8
40	2
41	7
42	7
43	14
44	9
45	7
46	1
47	4
48	3
49	1
50	1
51	1
52	5
53	1
54	1
55	2
56	8
57	4
58	1
59	8
60	2
61	4
62	1
63	8
64	3
65	9
66	5
67	3
68	2
69	1
70	4
71	1
72	4
73	4
74	2
75	3
76	2
77	4
78	2
79	12
80	3
81	1
82	1
83	3
84	12
85	2
86	1
87	2
88	5
89	5
90	3
91	3
92	10
93	4
94	19
95	1
96	6
97	4
98	8
99	7
100	2
101	5
102	9
103	2
104	3

n	a(n)
2	1
3	1
4	1
5	3
6	3
7	1
8	1
9	1
10	2
11	1
12	3
13	2
14	4
15	4
16	2
17	9
18	1
19	3
20	2
21	4
22	5
23	1
24	5
25	2
26	8
27	3
28	1
29	3
30	1
31	1
32	3
33	8
34	2
35	6
36	1
37	4
38	3
39	8
40	2
41	7
42	7
43	14
44	9
45	7
46	1
47	4
48	3
49	1
50	1
51	1
52	5
53	1
54	1
55	2
56	8
57	4
58	1
59	8
60	2
61	4
62	1
63	8
64	3
65	9
66	5
67	3
68	2
69	1
70	4
71	1
72	4
73	4
74	2
75	3
76	2
77	4
78	2
79	12
80	3
81	1
82	1
83	3
84	12
85	2
86	1
87	2
88	5
89	5
90	3
91	3
92	10
93	4
94	19
95	1
96	6
97	4
98	8
99	7
100	2
101	5
102	9
103	2
104	3

n	a(n)
2	1
3	1
4	1
5	3
6	3
7	1
8	1
9	1
10	2
11	1
12	3
13	2
14	4
15	4
16	2
17	9
18	1
19	3
20	2
21	4
22	5
23	1
24	5
25	2
26	8
27	3
28	1
29	3
30	1
31	1
32	3
33	8
34	2
35	6
36	1
37	4
38	3
39	8
40	2
41	7
42	7
43	14
44	9
45	7
46	1
47	4
48	3
49	1
50	1
51	1
52	5
53	1
54	1
55	2
56	8
57	4
58	1
59	8
60	2
61	4
62	1
63	8
64	3
65	9
66	5
67	3
68	2
69	1
70	4
71	1
72	4
73	4
74	2
75	3
76	2
77	4
78	2
79	12
80	3
81	1
82	1
83	3
84	12
85	2
86	1
87	2
88	5
89	5
90	3
91	3
92	10
93	4
94	19
95	1
96	6
97	4
98	8
99	7
100	2
101	5
102	9
103	2
104	3