A074884 - cp's OEIS frontend

A074884 For a prime p, let k(p) be the least k such that 2kp+1 is prime. Sequence gives primes for which k(p) exceeds k(q) for all primes q < p.

n	a(n)
1	2
2	7
3	17
4	19
5	59
6	167
7	197
8	227
9	317
10	457
11	521
12	1637
13	1861
14	1997
15	2053
16	3833
17	5227
18	19891
19	47303
20	54973
21	58603
22	124567
23	138163
24	170167
25	707467
26	1637429
27	1940777
28	3717731
29	4722079
30	17886697
31	27507569
32	73342163
33	154205101
34	160561133
35	186668543
36	429364379
37	458121431
38	1459411661
39	2140833967
40	4028983027
41	5189517859
42	6184586189
43	10352323829
44	36673176307

[2, 7, 17, 19, 59, 167, 197, 227, 317, 457, 521, 1637, 1861, 1997, 2053, 3833, 5227, 19891, 47303, 54973, 58603, 124567, 138163, 170167, 707467, 1637429, 1940777, 3717731, 4722079, 17886697, 27507569, 73342163, 154205101, 160561133, 186668543, 429364379, 458121431, 1459411661, 2140833967, 4028983027, 5189517859, 6184586189, 10352323829, 36673176307]

cp's OEIS Frontend

A074884 For a prime p, let k(p) be the least k such that 2kp+1 is prime. Sequence gives primes for which k(p) exceeds k(q) for all primes q < p.

Table of values

List of values