A175452 - cp's OEIS frontend

A175452 a(n) = smallest prime such that a(n)+2 is multiple of 2n+1.

n	a(n)
1	7
2	3
3	5
4	7
5	31
6	11
7	13
8	83
9	17
10	19
11	67
12	23
13	79
14	317
15	29
16	31
17	103
18	109
19	37
20	367
21	41
22	43
23	139
24	47
25	151
26	157
27	53
28	283
29	293
30	59
31	61
32	193
33	199
34	67
35	211
36	71
37	73
38	229
39	709
40	79
41	911
42	83
43	433
44	443
45	89
46	277
47	283
48	677
49	97
50	503
51	101
52	103
53	2459
54	107
55	109
56	337
57	113
58	349
59	593
60	1087

[7, 3, 5, 7, 31, 11, 13, 83, 17, 19, 67, 23, 79, 317, 29, 31, 103, 109, 37, 367, 41, 43, 139, 47, 151, 157, 53, 283, 293, 59, 61, 193, 199, 67, 211, 71, 73, 229, 709, 79, 911, 83, 433, 443, 89, 277, 283, 677, 97, 503, 101, 103, 2459, 107, 109, 337, 113, 349, 593, 1087]

cp's OEIS Frontend

A175452 a(n) = smallest prime such that a(n)+2 is multiple of 2n+1.

Table of values

List of values