%I

%S 1,0,1,1,1,1,1,2,2,2,1,3,1,3,3,5,1,4,1,5,4,5,1,7,2,6,5,8,1,7,1,9,6,8,

%T 2,11,1,9,7,12,1,10,1,12,10,11,1,15,2,12,9,15,1,13,3,16,10,14,1,18,1,

%U 15,12,20,4,17,1,19,12,17,1,22,1,18,16,22,2,20,1,24,15,20,1,25,5,21,15,26

%N a(n)=number of arithmetic progressions of odd numbers, strictly increasing with sum n.

%K easy,nonn

%O 1,8

%A _Naohiro Nomoto_, Feb 27 2002