%I #3 Mar 30 2012 18:50:29

%S 1,2,3,5,7,11,13,14,15,17,19,21,22,23,29,31,33,34,35,37,38,39,41,42,

%T 43,46,47,53,55,57,58,59,61,62,65,67,69,71,73,74,77,79,82,83,85,86,87,

%U 89,91,93,94,95,97,101,103,105,106,107,109,110,111,113,114,115,118,119

%N Numbers occurring only once in A076734.

%C A077618(a(n))=1;

%C Primes are a subsequence: A077618(A000040(n))=1.

%Y Cf. A077619, A077621.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Nov 12 2002