>>467
少年よ、再帰を抱け！

def sum(n,s,k)
ls = [0,1,4]
if n == 0 then
print k,"\t","sum=",s,"\n"
else
for i in 0..2
sum(n-1,s+ls[i],k+[i])
end
end
end

sum(6,0,[])