OpenSCAD
#1 14
#2 13
#3 9
#4 9
#5 5
#6 5
#7 5
#8 5
#9 4
#10 3
#11 2
#12 2
#13 2
#14 2
#15 2
#16 2
#17 1
#18 1
#19 1
#20 1