A175123 - OEIS

%I #7 Mar 11 2014 01:32:50

%S 4,4,6,6,8,4,6,9,6,9,6,6,6,8,6,4,6,6,8,6,6,4,6,12,12,8,6,4,6,9,6,6,6,

%T 8,4,15,6,12,9,8,6,4,8,4,6,9,6,8,9,12,4,9,6,6,9,9,12,6,8,9,10,15,6,9,

%U 8,9,6,4,9,6,6,8,6,4,9,8,10,14,6,4,8,15,6,4,6,14,6,4,12,20,6,4,9,12,8,4,6,6

%N a(n) = (A175122(n+1) - A175122(n))/2.

%C Every term is composite.

%Y Cf. A175122.

%K nonn

%O 1,1

%A _Leroy Quet_, Feb 15 2010

%E Extended by _Ray Chandler_, Mar 06 2010