A259731 - cp's OEIS frontend

A259731 Least positive integer k such that prime(k*n)-1 is a square, or 0 if no such k exists.

n	a(n)
1	1
2	6
3	1
4	3
5	9
6	2
7	1
8	181
9	5
10	459
11	5
12	1
13	2
14	18
15	3
16	421
17	35
18	14
19	183
20	3274
21	12
22	143
23	501
24	422
25	1407
26	1
27	170
28	9
29	55
30	153
31	2044
32	426
33	274
34	74
35	17
36	7
37	68
38	452
39	1084
40	1637
41	3
42	6
43	43
44	1141
45	1
46	8218
47	1860
48	211
49	42
50	1582
51	53
52	813
53	2
54	85
55	1
56	5714
57	61
58	1379
59	296
60	1457
61	57
62	1022
63	4
64	213
65	1331
66	137
67	525
68	37
69	167
70	1130

[1, 6, 1, 3, 9, 2, 1, 181, 5, 459, 5, 1, 2, 18, 3, 421, 35, 14, 183, 3274, 12, 143, 501, 422, 1407, 1, 170, 9, 55, 153, 2044, 426, 274, 74, 17, 7, 68, 452, 1084, 1637, 3, 6, 43, 1141, 1, 8218, 1860, 211, 42, 1582, 53, 813, 2, 85, 1, 5714, 61, 1379, 296, 1457, 57, 1022, 4, 213, 1331, 137, 525, 37, 167, 1130]

cp's OEIS Frontend

A259731 Least positive integer k such that prime(k*n)-1 is a square, or 0 if no such k exists.

Table of values

List of values