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A007795 Juxtapose pairs of primes. 14

%I #19 Sep 08 2022 08:44:35

%S 23,57,1113,1719,2329,3137,4143,4753,5961,6771,7379,8389,97101,103107,

%T 109113,127131,137139,149151,157163,167173,179181,191193,197199,

%U 211223,227229,233239,241251,257263,269271,277281,283293,307311,313317,331337,347349,353359

%N Juxtapose pairs of primes.

%H Vincenzo Librandi, <a href="/A007795/b007795.txt">Table of n, a(n) for n = 1..1000</a>

%t FromDigits[Flatten[IntegerDigits/@#]]&/@Partition[Prime[ Range[150]],2] (* _Harvey P. Dale_, May 06 2011 *)

%o (Magma) [Seqint(Intseq(NthPrime(n+1)) cat Intseq(NthPrime(n))): n in [1..86 by 2]]; // _Vincenzo Librandi_, Jan 05 2018

%K nonn,base

%O 1,1

%A William B. Moore (bmoore(AT)artemis.ess.ucla.edu)

%E More terms from _Harvey P. Dale_, May 06 2011

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Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)