Board Thread:Fun and Games/@comment-35106536-20160521183826/@comment-26457153-20160521221312

After theorizing for several minutes, I finally figured out that it is......14641

What I thought initially

x2 - 1[1]

x2 - 2[1 1]

x2 - 4[1 2 1 ]

x2 - 8 [1 3 3 1]

x2- 16(gave up)