A238848 - cp's OEIS frontend

A238848 Smallest k such that k*n^3 - 1 is prime.

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

[3, 1, 2, 2, 4, 2, 14, 7, 6, 2, 4, 4, 14, 3, 4, 2, 16, 4, 12, 9, 2, 5, 16, 2, 2, 3, 16, 6, 10, 4, 2, 4, 22, 2, 6, 3, 6, 10, 6, 3, 22, 5, 2, 3, 4, 2, 18, 4, 26, 10, 4, 5, 6, 2, 2, 7, 6, 2, 10, 5, 2, 9, 4, 2, 16, 3, 6, 9, 2, 3, 30, 5, 14, 6, 24, 5, 16, 5]

cp's OEIS Frontend

A238848 Smallest k such that k*n^3 - 1 is prime.

Table of values

List of values

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

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

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