Pascal’s (Chu Shih-chieh’s) Triangle 1

1  1
1  2  1
1  3  3  1
1  4  6  4  1
1  5  10 10 5  1
1  6  15 20 15 6  1
1  7  21 35 35 21 7  1
1  8  28 56 70 56 28 8  1