perl -wE"my %h;$h{$_}=$_, say $_, ':',scalar %h for 1 .. 1025" | more 1:1/8 2:2/8 3:3/8 4:3/8 ## collision 5:4/8 6:5/8 7:6/8 8:7/16 9:8/16 10:9/16 11:10/16 12:10/16 ## collision 13:10/16 ## collision 14:11/16 15:11/16 ## collision 16:14/32 17:14/32 ## collision ...