A069630 - cp's OEIS frontend

A069630 a(1) = 3; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits)in a(2n).

%I A069630 #4 Dec 05 2013 19:55:16
%S A069630 3,31,131,1319,21319,213193,12213193,122131939,1122131939,
%T A069630 112213193909,17112213193909,171122131939093,18171122131939093,
%U A069630 1817112213193909339,61817112213193909339,618171122131939093397,60618171122131939093397
%N A069630 a(1) = 3; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits)in a(2n).
%Y A069630 Cf. A069614 to A069621, A069628 to A069636. Different from A069615.
%K A069630 nonn,base
%O A069630 1,1
%A A069630 _Amarnath Murthy_, Mar 27 2002
%E A069630 Edited and extended by _Robert G. Wilson v_, Apr 03 2002

cp's OEIS Frontend

A069630 a(1) = 3; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits)in a(2n).