n / k 0 1 2 3 4 5 6 7 8 9 0 1 1 1 1 2 1 2 1 3 1 3 3 1 4 1 4 6 4 1 5 1 5 10 10 5 1 6 1 6 15 20 15 6 1 7 1 7 21 35 35 21 7 1 8 1 8 28 56 70 56 28 8 1 9 1 9 36 84 126 126 84 36 9 1 {\displaystyle {\begin{matrix}\mathbf {n} /{\mathit {k}}&\ {\mathit {0}}\ &\ {\mathit {1}}\ &{\mathit {2}}&{\mathit {3}}&{\mathit {4}}&{\mathit {5}}&{\mathit {6}}&{\mathit {7}}&\ {\mathit {8}}\ &{\mathit {9}}\\\mathbf {0} &1\\\mathbf {1} &1&1\\\mathbf {2} &1&2&1\\\mathbf {3} &1&3&3&1\\\mathbf {4} &1&4&6&4&1\\\mathbf {5} &1&5&10&10&5&1\\\mathbf {6} &1&6&15&20&15&6&1\\\mathbf {7} &1&7&21&35&35&21&7&1\\\mathbf {8} &1&8&28&56&70&56&28&8&1\\\mathbf {9} &1&9&36&84&126&126&84&36&9&1\end{matrix}}}
