www.mikescher.com/www/statics/euler/Euler_Problem-061.php

<?php

return 
[
	'number'      => 61,
	'date'        => '2015-07-04',
	'title'       => 'Cyclical figurate numbers',
	'abbreviated' => false,
	'steps'       => 50105245,
	'time'        => 14414,
	'width'       => 80,
	'height'      => 25,
	'value'       => 28684,
];