A103790 - cp's OEIS frontend

A103790 a(n) = the minimum k that makes prime(n)+A019565(k) prime.

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	3
7	1
8	5
9	3
10	1
11	3
12	3
13	1
14	5
15	3
16	3
17	1
18	3
19	3
20	1
21	3
22	5
23	3
24	9
25	3
26	1
27	3
28	1
29	7
30	9
31	5
32	3
33	1
34	5
35	1
36	3
37	3
38	5
39	3
40	3
41	1
42	5
43	1
44	3
45	1
46	7
47	7
48	3
49	1
50	5
51	3
52	1
53	5
54	3
55	3
56	3
57	1
58	3
59	3
60	1
61	5
62	9
63	3
64	1
65	13
66	7
67	3
68	5
69	1
70	5
71	3
72	7
73	3
74	3
75	5
76	3
77	7
78	11
79	7
80	5
81	1
82	5
83	1
84	3
85	5
86	3
87	7
88	3
89	1
90	15
91	11
92	7
93	13
94	7
95	5
96	3
97	9
98	1
99	13
100	3
101	5
102	3
103	3

[0, 1, 1, 3, 1, 3, 1, 5, 3, 1, 3, 3, 1, 5, 3, 3, 1, 3, 3, 1, 3, 5, 3, 9, 3, 1, 3, 1, 7, 9, 5, 3, 1, 5, 1, 3, 3, 5, 3, 3, 1, 5, 1, 3, 1, 7, 7, 3, 1, 5, 3, 1, 5, 3, 3, 3, 1, 3, 3, 1, 5, 9, 3, 1, 13, 7, 3, 5, 1, 5, 3, 7, 3, 3, 5, 3, 7, 11, 7, 5, 1, 5, 1, 3, 5, 3, 7, 3, 1, 15, 11, 7, 13, 7, 5, 3, 9, 1, 13, 3, 5, 3, 3]

cp's OEIS Frontend

A103790 a(n) = the minimum k that makes prime(n)+A019565(k) prime.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	3
7	1
8	5
9	3
10	1
11	3
12	3
13	1
14	5
15	3
16	3
17	1
18	3
19	3
20	1
21	3
22	5
23	3
24	9
25	3
26	1
27	3
28	1
29	7
30	9
31	5
32	3
33	1
34	5
35	1
36	3
37	3
38	5
39	3
40	3
41	1
42	5
43	1
44	3
45	1
46	7
47	7
48	3
49	1
50	5
51	3
52	1
53	5
54	3
55	3
56	3
57	1
58	3
59	3
60	1
61	5
62	9
63	3
64	1
65	13
66	7
67	3
68	5
69	1
70	5
71	3
72	7
73	3
74	3
75	5
76	3
77	7
78	11
79	7
80	5
81	1
82	5
83	1
84	3
85	5
86	3
87	7
88	3
89	1
90	15
91	11
92	7
93	13
94	7
95	5
96	3
97	9
98	1
99	13
100	3
101	5
102	3
103	3

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	3
7	1
8	5
9	3
10	1
11	3
12	3
13	1
14	5
15	3
16	3
17	1
18	3
19	3
20	1
21	3
22	5
23	3
24	9
25	3
26	1
27	3
28	1
29	7
30	9
31	5
32	3
33	1
34	5
35	1
36	3
37	3
38	5
39	3
40	3
41	1
42	5
43	1
44	3
45	1
46	7
47	7
48	3
49	1
50	5
51	3
52	1
53	5
54	3
55	3
56	3
57	1
58	3
59	3
60	1
61	5
62	9
63	3
64	1
65	13
66	7
67	3
68	5
69	1
70	5
71	3
72	7
73	3
74	3
75	5
76	3
77	7
78	11
79	7
80	5
81	1
82	5
83	1
84	3
85	5
86	3
87	7
88	3
89	1
90	15
91	11
92	7
93	13
94	7
95	5
96	3
97	9
98	1
99	13
100	3
101	5
102	3
103	3

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	3
7	1
8	5
9	3
10	1
11	3
12	3
13	1
14	5
15	3
16	3
17	1
18	3
19	3
20	1
21	3
22	5
23	3
24	9
25	3
26	1
27	3
28	1
29	7
30	9
31	5
32	3
33	1
34	5
35	1
36	3
37	3
38	5
39	3
40	3
41	1
42	5
43	1
44	3
45	1
46	7
47	7
48	3
49	1
50	5
51	3
52	1
53	5
54	3
55	3
56	3
57	1
58	3
59	3
60	1
61	5
62	9
63	3
64	1
65	13
66	7
67	3
68	5
69	1
70	5
71	3
72	7
73	3
74	3
75	5
76	3
77	7
78	11
79	7
80	5
81	1
82	5
83	1
84	3
85	5
86	3
87	7
88	3
89	1
90	15
91	11
92	7
93	13
94	7
95	5
96	3
97	9
98	1
99	13
100	3
101	5
102	3
103	3