A134932 - OEIS

%I #2 Mar 30 2012 17:33:50

%S 2,3,4,5,6,7,8,9,10,14,15,16,20,21,22,29,30,31,35,36,37,50,51,52,53,

%T 54,55,68,69,70,74,75,76,89,90,91,95,96,97,98,99,100,113,114,115,119,

%U 120,121,134,135,136,140,141,142,155,156,157

%N a(n)=A134928(n)/2.

%C Triplet composites, divided by 2.

%e a(6)=7 because A134928(6)=14 then we can write 14/2=7.

%Y Cf. A134928.

%K easy,nonn

%O 1,1

%A _Omar E. Pol_, Nov 22 2007