A289356 - cp's OEIS frontend

A289356 Least number k such that n^2 + n + k is prime.

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

[2, 1, 1, 1, 3, 1, 1, 3, 1, 7, 3, 5, 1, 9, 1, 1, 5, 1, 5, 3, 1, 1, 3, 5, 1, 3, 7, 1, 9, 7, 7, 5, 5, 1, 3, 17, 29, 3, 1, 7, 17, 1, 5, 9, 7, 11, 17, 11, 5, 9, 1, 5, 11, 17, 1, 3, 11, 1, 11, 1, 11, 11, 1, 17, 17, 7, 1, 5, 11, 1, 3, 1, 5, 5, 7, 1, 5, 1, 1, 3, 1, 11, 17, 5, 11, 11]

cp's OEIS Frontend

A289356 Least number k such that n^2 + n + k is prime.

Table of values

List of values

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

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

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