A230117 - cp's OEIS frontend

A230117 Primes p such that 2p+1 is prime and 2p+3 is not prime.

n	a(n)
1	3
2	11
3	23
4	41
5	83
6	131
7	179
8	191
9	233
10	239
11	251
12	281
13	293
14	359
15	419
16	431
17	443
18	491
19	593
20	641
21	653
22	683
23	719
24	761
25	911
26	953
27	1019
28	1031
29	1049
30	1103
31	1223
32	1229
33	1289
34	1409
35	1439
36	1451
37	1481
38	1511
39	1601
40	1811
41	1889
42	1901
43	1931
44	1973
45	2003
46	2039
47	2069
48	2141

[3, 11, 23, 41, 83, 131, 179, 191, 233, 239, 251, 281, 293, 359, 419, 431, 443, 491, 593, 641, 653, 683, 719, 761, 911, 953, 1019, 1031, 1049, 1103, 1223, 1229, 1289, 1409, 1439, 1451, 1481, 1511, 1601, 1811, 1889, 1901, 1931, 1973, 2003, 2039, 2069, 2141]

cp's OEIS Frontend

A230117 Primes p such that 2p+1 is prime and 2p+3 is not prime.

Table of values

List of values

cp's OEIS Frontend

A230117 Primes p such that 2*p+1 is prime and 2*p+3 is not prime.

Table of values

List of values

A230117 Primes p such that 2p+1 is prime and 2p+3 is not prime.