The numbers 125 and 329 can be written as the sum of a prime and a power of 2. For example, 125 = 109+2^4, and 329 = 73+2^8. The numbers 127 and 331, which are examples of de Polignac numbers, cannot be written in this way.
Write a function that determines whether an odd number is a de Polignac number.
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Riccardo G. 晨哲 Aditya Lorenzo

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