A232238 - cp's OEIS frontend

A232238 Primes p such that p+2 and q are primes, where q is concatenation of binary representations of p and p+2: q = p * 2^L + p+2, where L is the length of binary representation of p+2: L=A070939(p+2).

n	a(n)
1	3
2	5
3	17
4	71
5	269
6	1049
7	1151
8	1721
9	5099
10	5279
11	5657
12	6299
13	6569
14	6779
15	7307
16	7589
17	16451
18	16649
19	16691
20	19079
21	19139
22	19211
23	19841
24	19961
25	20771
26	20981
27	21011
28	21059
29	21599
30	22619
31	22961
32	23201
33	23369
34	23741
35	23909
36	24419
37	26729
38	26951
39	27689
40	28109
41	28409
42	28751
43	29129

[3, 5, 17, 71, 269, 1049, 1151, 1721, 5099, 5279, 5657, 6299, 6569, 6779, 7307, 7589, 16451, 16649, 16691, 19079, 19139, 19211, 19841, 19961, 20771, 20981, 21011, 21059, 21599, 22619, 22961, 23201, 23369, 23741, 23909, 24419, 26729, 26951, 27689, 28109, 28409, 28751, 29129]

cp's OEIS Frontend

A232238 Primes p such that p+2 and q are primes, where q is concatenation of binary representations of p and p+2: q = p * 2^L + p+2, where L is the length of binary representation of p+2: L=A070939(p+2).

Table of values

List of values