Select Code to Download

my $lazy235 = challenge( 2, 3, 5 );

sub nth {
  my $ll = shift;
...
  die "Invalid argument: $n\n" if $n < 0;
  return $n == 0 ? head( $ll ) : nth( tail( $ll ), $n - 1 );
}

my @first_50 = take( 50, $lazy235 );
my @again    = take( 50, $lazy235 );
...
for ( map int( rand( 1000 ) ), ( 1 .. 5 ) ) {
  printf "%3d %d\n", $_, nth( $lazy235, $_ );
}

0 2 3 4 5 6 8 9 10 12 14 15 16 18 20 21 22 24 25 26 27 28 30 32 33 34 
+35 36 38 39 40 42 44 45 46 48 50 51 52 54 55 56 57 58 60 62 63 64 65 
+66

...
530 723
994 1355
579 789