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A007796 List of pairs of primes in reverse order, starting at 1. 2

%I #11 May 10 2015 15:43:21

%S 21,53,117,1713,2319,3129,4137,4743,5953,6761,7371,8379,9789,103101,

%T 109107,127113,137131,149139,157151,167163,179173,191181,197193,

%U 211199,227223

%N List of pairs of primes in reverse order, starting at 1.

%H Harvey P. Dale, <a href="/A007796/b007796.txt">Table of n, a(n) for n = 1..1000</a>

%t FromDigits/@(Flatten[IntegerDigits/@Reverse[#]]&/@Partition[Join[{1}, Prime[ Range[2*30]]],2])(* _Harvey P. Dale_, May 10 2015 *)

%K nonn,base

%O 1,1

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

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)