public function dataProviderForCombinations()
{
return [[10, 0, 1], [10, 1, 10], [10, 2, 45], [10, 3, 120], [10, 4, 210], [10, 5, 252], [10, 6, 210], [10, 7, 120], [10, 8, 45], [10, 9, 10], [10, 10, 1], [5, 3, 10], [6, 4, 15], [16, 3, 560], [20, 3, 1140]];
}