A258580 - cp's OEIS frontend

A258580 Least positive integer k such that (prime(jn)+prime(kn))/2 = prime(i*n)^2 for some integers i > 0 and 0 < j < k.

n	a(n)
1	3
2	9
3	4
4	127
5	98
6	133
7	55
8	78
9	65
10	85
11	375
12	109
13	251
14	283
15	105
16	462
17	681
18	149
19	156
20	213
21	525
22	209
23	205
24	381
25	757
26	313
27	252
28	615
29	61
30	737
31	478
32	1754
33	406
34	1197
35	131
36	420
37	492
38	503
39	127
40	119
41	549
42	1748
43	95
44	442
45	2740
46	555
47	677
48	1258
49	163
50	816
51	1649
52	710
53	203
54	126
55	628
56	582
57	1004
58	135
59	837
60	1000

[3, 9, 4, 127, 98, 133, 55, 78, 65, 85, 375, 109, 251, 283, 105, 462, 681, 149, 156, 213, 525, 209, 205, 381, 757, 313, 252, 615, 61, 737, 478, 1754, 406, 1197, 131, 420, 492, 503, 127, 119, 549, 1748, 95, 442, 2740, 555, 677, 1258, 163, 816, 1649, 710, 203, 126, 628, 582, 1004, 135, 837, 1000]

cp's OEIS Frontend

A258580 Least positive integer k such that (prime(jn)+prime(kn))/2 = prime(i*n)^2 for some integers i > 0 and 0 < j < k.

Table of values

List of values

cp's OEIS Frontend

A258580 Least positive integer k such that (prime(j*n)+prime(k*n))/2 = prime(i*n)^2 for some integers i > 0 and 0 < j < k.

Table of values

List of values

A258580 Least positive integer k such that (prime(jn)+prime(kn))/2 = prime(i*n)^2 for some integers i > 0 and 0 < j < k.