A259712 - cp's OEIS frontend

A259712 Least positive integer k such that prime(k) + prime(k*n) is a square.

n	a(n)
1	1
2	10
3	2
4	1
5	1126
6	60
7	55
8	691
9	1
10	24
11	15
12	640
13	5
14	41
15	1
16	671
17	261
18	3
19	8
20	219
21	103
22	1
23	1843
24	128
25	2240
26	4
27	664
28	12
29	111
30	275
31	19
32	576
33	166
34	5
35	3
36	13
37	7462
38	243
39	1
40	1599
41	228
42	6297
43	128
44	853
45	995
46	49
47	164
48	1
49	116
50	10
51	40
52	3971
53	1741
54	32
55	338
56	11992
57	3
58	39
59	20
60	24
61	2
62	465
63	352
64	24
65	138
66	241
67	343
68	177
69	32
70	3

[1, 10, 2, 1, 1126, 60, 55, 691, 1, 24, 15, 640, 5, 41, 1, 671, 261, 3, 8, 219, 103, 1, 1843, 128, 2240, 4, 664, 12, 111, 275, 19, 576, 166, 5, 3, 13, 7462, 243, 1, 1599, 228, 6297, 128, 853, 995, 49, 164, 1, 116, 10, 40, 3971, 1741, 32, 338, 11992, 3, 39, 20, 24, 2, 465, 352, 24, 138, 241, 343, 177, 32, 3]

cp's OEIS Frontend

A259712 Least positive integer k such that prime(k) + prime(k*n) is a square.

Table of values

List of values