A339544 Primes p such that A007088(p) mod p is prime.

3, 17, 19, 29, 31, 71, 79, 83, 103, 113, 151, 211, 229, 293, 331, 337, 347, 349, 421, 439, 449, 457, 607, 659, 683, 691, 739, 743, 809, 839, 883, 911, 977, 1039, 1051, 1193, 1249, 1277, 1283, 1303, 1367, 1439, 1451, 1499, 1567, 1597, 1609, 1663, 1747, 1753, 1861, 2089, 2137, 2273, 2309, 2311

Offset

1,1

Links

Robert Israel, Table of n, a(n) for n = 1..10000

Example

a(3) = 19 because 19 = 10011_2 and 10011 mod 19 = 17 which is prime.

Maple

filter:= proc(n) isprime(n) and isprime(convert(n, binary) mod n) end proc:
select(filter, [seq(i, i=3..10000, 2)]);

Crossrefs

Cf. A007088.

Sequence in context: A038886 A019342 A340408 * A029473 A103088 A226925

Adjacent sequences: A339541 A339542 A339543 * A339545 A339546 A339547

Keyword

nonn,base

Author

J. M. Bergot and Robert Israel, Dec 08 2020

Status

approved