(phixonline)--> with javascript_semantics function pop_count(atom n) if n<0 then ?9/0 end if integer res = 0 while n!=0 do res += and_bits(n,1) n = floor(n/2) end while return res end function printf(1,"3^x pop_counts:%v\n",{apply(apply(true,power,{3,tagset(29,0)}),pop_count)}) procedure eo(integer b0, string name) sequence s = repeat(0,30) integer k=0, l=1 while l<=30 do if and_bits(pop_count(k),1)=b0 then s[l] = k l += 1 end if k += 1 end while printf(1,"%s numbers:%v\n",{name,s}) end procedure eo(0," evil") eo(1,"odious")