Talk is cheap.

class Solution(object):
    def numberOfDice(self, n):
        dp = [0] * (6 * n)
        dp[0:6] = [1] * 6
        for time in range(2,n+1):
            for i in range(6*time-1, -1, -1):
                dp[i]=0
                for j in range(6, 0, -1):
                    if i < j:
                        continue
                    dp[i] += dp[i - j]
        return dp[n-1:]