yes they are...I dont know how come nobody picked up on it...So are mazes...They are beautiful math art even if they are not mathematical in nature....The designs should cost A LOT, A FORTUNE...

for those who like math...

CropCircles: and Lotto Combinations...

i´ve heard that certain designs have number sequence in them and i thought...Couldnt you make, designs like the crop circles out of lotto combinations...

a Pick6/52 lotto combination is actually a 12 string combination when you look at it forward and when you look at it backwards and add the backward combination...1-52 and 52-1....

I will also think that an allien civilization will do this, if they didnt invent letters...they will get numbers and form figures out of them...the way we form words out of letters....