Get all Unique Sequences

gistfile1.scala

        def getAllUniqueSequences(currentList: List[Int]) : List[List[Int]] = {
          if (currentList.length == 0) // Base case
            List()
          else // General case
            (List(List(currentList.head))
              ++ getAllUniqueSequences(currentList.tail).map(s => currentList.head :: s)
              ++ getAllUniqueSequences(currentList.tail))
        }