A232085 Primes that can be written in binary representation as concatenation of two primes. That is, primes representable as p * 2^L + q, where p and q are primes, and L is the length of binary representation of q: L = A070939(q).

11, 23, 29, 31, 43, 47, 59, 61, 71, 79, 83, 109, 113, 127, 151, 157, 167, 179, 181, 191, 229, 233, 239, 241, 251, 271, 283, 317, 349, 353, 359, 367, 373, 379, 383, 431, 433, 439, 457, 463, 467, 479, 487, 491, 509, 541, 563, 599, 607, 631, 643, 661, 691, 701, 709, 719

Offset

1,1

Comments

A subsequence of A090423.

Links

Table of n, a(n) for n=1..56.

Crossrefs

Cf. A000040, A070939, A090423.

Sequence in context: A157173 A257318 A090423 * A086102 A058340 A138537

Adjacent sequences: A232082 A232083 A232084 * A232086 A232087 A232088

Keyword

nonn,base,less

Author

Alex Ratushnyak, Nov 17 2013

Status

approved