**33264**

3+3+2+6+4 =18

__ 3 3__ 2 6 4 - 1st 2 digits the same.

** 3** 3 2

**4 - Fourth digit is twice the first**

__6__3 3 ** 2** 6

**- Last digit is twice the third**

__4__**33264**

3+3+2+6+4 =18

__ 3 3__ 2 6 4 - 1st 2 digits the same.

** 3** 3 2

3 3 ** 2** 6

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