arguments on why specific numbers aren't bestagons:
1,2 and 3:there is just not enough space
4:let's see. 4+5+6+7+6+5+4=37 hexes
input has 4. other input has 2. output has 7. that means 24 left. 2 for the unbonder, 2 for the bonder, that means 20 remain. another 2 for the projection. that means 18 left.if there is something i can do with these 18 spaces, then 4 is the bestagon