A165821 a(n) = the smallest positive integer that, when written in binary, contains both binary n and the binary representation of the n-th prime as substrings.

2, 6, 11, 28, 11, 13, 71, 152, 151, 58, 95, 101, 105, 174, 47, 848, 571, 978, 1075, 327, 1173, 719, 1335, 1432, 1561, 1626, 827, 860, 237, 241, 127, 131, 4233, 139, 4501, 1175, 4765, 2467, 167, 1384, 5299, 362, 703, 705, 1581, 1479, 3027, 3568, 227, 229

Offset: 1

Author

Leroy Quet, Sep 28 2009

Keywords

• base
• nonn

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000040, A165819, A165820, A165822, A294977.

Formula

a(n) = A294977(n, A000040(n)). - Rémy Sigrist, Mar 03 2018

Extensions

More terms from Carl R. White, Oct 06 2009