A374402 - cp's OEIS frontend

A374402 Least number that is the lesser of two consecutive primes p and q whose binary expansions have the same length and agree at exactly n digit positions, or -1 if no such prime pair exists.

n	a(n)
1	2
2	5
3	23
4	17
5	41
6	67
7	137
8	269
9	521
10	1049
11	2081
12	4111
13	8233
14	16417
15	32771
16	65537
17	131113
18	262147
19	524309
20	1048609
21	2097257
22	4194389
23	8388617
24	16777289
25	33554501
26	67109123
27	134217929
28	268435459
29	536871017
30	1073741827
31	2147484041
32	4294967497
33	8589934627
34	17179869731

[2, 5, 23, 17, 41, 67, 137, 269, 521, 1049, 2081, 4111, 8233, 16417, 32771, 65537, 131113, 262147, 524309, 1048609, 2097257, 4194389, 8388617, 16777289, 33554501, 67109123, 134217929, 268435459, 536871017, 1073741827, 2147484041, 4294967497, 8589934627, 17179869731]

cp's OEIS Frontend

A374402 Least number that is the lesser of two consecutive primes p and q whose binary expansions have the same length and agree at exactly n digit positions, or -1 if no such prime pair exists.

Table of values

List of values