Can someone help me prove that 2^3^n + 1 is divisible by 3^(n+1)??!!

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- December 12th 2012, 03:48 AMwille13Have no idea on how to prove
Can someone help me prove that 2^3^n + 1 is divisible by 3^(n+1)??!!

- December 12th 2012, 04:28 AMskeeterRe: Have no idea on how to prove
you've not performed induction before?

for , , ... true for

assume true for , prove true for ...

the last expression is the sum of two cubes and will factor. can you finish?