%I #3 Mar 31 2012 10:30:23
%S 2,3,13,4,17,5,133,74,294,207,32,6,501,38,1089,440,7,215,3146,1859,59,
%T 8,5005,1092,67,9,27599,19916,11466,5194,1810,468,58344,47515,31382,
%U 16660,7004,2278,94,10,105859,78897,48042,23664,9282,104,222547,184756
%N (Terms in A028273)/2.
%Y A028273, A028262.
%K nonn
%O 0,1
%A _James A. Sellers_