932. Beautiful Array

class Solution:
    def beautifulArray(self, n: int) -> List[int]:
        if n == 1:
            return [1]
        left = self.beautifulArray((n + 1) >> 1)
        right = self.beautifulArray(n >> 1)
        left = [x * 2 - 1 for x in left]
        right = [x * 2 for x in right]
        return left + right