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![3098. Find the Sum of Subsequence Powers | 4D DP | time- O(n^5) [*will be updated for O(n^4)]](https://i.ytimg.com/vi/3go6vNha0Do/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLBtHDJjsYqQ-H5trbUSOSX8moAUJA)
