from typing import List def getRow(rowIndex: int) -> List[int]: ret = list() for i in range(rowIndex + 1): res = list() for j in range(0, i + 1): if j == 0 or j == i: res.append(1) else: res.append(ret[i - 1][j - 1] + ret[i - 1][j]) ret.append(res) return res print(getRow(6))