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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. 5

%I

%S 2,6,11,28,11,13,71,152,151,58,95,101,105,174,47,848,571,978,1075,327,

%T 1173,719,1335,1432,1561,1626,827,860,237,241,127,131,4233,139,4501,

%U 1175,4765,2467,167,1384,5299,362,703,705,1581,1479,3027,3568,227,229

%N 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.

%H Rémy Sigrist, <a href="/A165821/b165821.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = A294977(n, A000040(n)). - _Rémy Sigrist_, Mar 03 2018

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

%K base,nonn

%O 1,1

%A _Leroy Quet_, Sep 28 2009

%E More terms from _Carl R. White_, Oct 06 2009

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Last modified June 18 18:52 EDT 2019. Contains 324215 sequences. (Running on oeis4.)