F#
#1 658
#2 43
#3 16
#4 14
#5 13
#6 13
#7 9
#8 9
#9 8
#10 7
#11 7
#12 5
#13 5
#14 2
#15 2
#16 1
#17 1
#18 1
#19 1
#20 1