Common Lisp
#1 278
#2 46
#3 18
#4 18
#5 9
#6 5
#7 3
#8 3
#9 2
#10 2
#11 2
#12 2
#13 2
#14 1
#15 1
#16 1
#17 1
#18 1
#19 1
#20 1