def get_magic_triangle(n):
    inner_matrix = []

    def upper_sum(r, c):
        if r == 0: return 1
        if c == 0: return 1
        if c == len(inner_matrix[r-1]): return 1

        return inner_matrix[r-1][c-1] + inner_matrix[r - 1][c]

    for row in range(n):
        inner_matrix.append([1])
        for col in range(1, row + 1):
            inner_matrix[row].append(upper_sum(row, col))
    return inner_matrix