It doesn't (yet) have an algorithm except "brute force" and "random", but Algorithm::Bucketizer provides a framework for solving tasks like these:

my @values = (10,40,30,14,50,29,59,20,59,20,10,1,3,5,2,4);

use Algorithm::Bucketizer;

    # Create a bucketizer
my $bucketizer = Algorithm::Bucketizer->new(bucketsize => 291);

for my $value (@values) {

    # Add items to it
    $bucketizer->add_item($value, $value);
}

$bucketizer->optimize(maxrounds => 1000, algorithm => "brute_force");

for my $bucket ($bucketizer->buckets()) {
    my @items = $bucket->items();
    print $bucket->level(), ": @items\n";
}
[download]

1000 Rounds:

286: 4 2 5 3 1 10 20 59 20 59 29 50 14 10
70: 30 40
[download]

10,000 Rounds:

286: 4 2 5 3 1 10 20 59 20 59 29 50 14 10
70: 30 40
[download]

If you find a usable algorithm, it can be plugged into Algorithm::Bucketizer as a standard choice.