%I #4 Dec 05 2013 19:55:37
%N a(1) = 1, a(2n) = smallest composite number obtained by adding a prime to a(2n-1). a(2n+1) = the smallest prime obtained by adding a composite number to a(2n).
%C a(k) = b(k-1) for k > 6 where b(r) is the r-th term of A075338.
%Y Cf. A075338.
%A _Amarnath Murthy_, Sep 18 2002
%E More terms from _David Wasserman_, Jan 16 2005