www.mikescher.com/www/statics/euler/Euler_Problem-072.php

<?php

return 
[
	'number'      => 72,
	'date'        => '2015-08-21',
	'title'       => 'Counting fractions',
	'abbreviated' => true,
	'steps'       => 339636085,
	'time'        => 50606,
	'width'       => 486,
	'height'      => 1047,
	'value'       => 303963552391,
];