# Dare to solve this?

Number Theory Level pending

Consider the sequence $$a_{1}, a_{2}, ......$$ defined by $$a_{n} = 2^{n} + 3^{n} + 6^{n} - 1$$, $$(n = 1, 2, .... )$$

Determine all positive integers that are relatively prime to every term of the sequence.

Enter your answer as the total number of integers that you get.

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