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