A204065 - cp's OEIS frontend

A204065 Least nonnegative integer k with n+k and n+k^2 both prime.

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

[1, 0, 0, 1, 0, 1, 0, 3, 2, 1, 0, 1, 0, 3, 2, 1, 0, 1, 0, 3, 16, 1, 0, 7, 4, 15, 2, 1, 0, 1, 0, 9, 8, 3, 6, 1, 0, 3, 2, 1, 0, 1, 0, 3, 8, 1, 0, 5, 10, 3, 10, 1, 0, 5, 4, 15, 2, 1, 0, 1, 0, 21, 4, 3, 6, 1, 0, 15, 2, 1, 0, 1, 0, 33, 8, 25, 6, 1, 0, 3, 16, 1, 0, 5, 4, 15, 14, 1, 0, 7, 6, 9, 4, 3, 6, 1, 0, 3, 2, 1]

cp's OEIS Frontend

A204065 Least nonnegative integer k with n+k and n+k^2 both prime.

Table of values

List of values

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

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

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