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A171253
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Semi-sums (average) of any two distinct Mersenne primes (A000668).
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5
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5, 17, 19, 65, 67, 79, 4097, 4099, 4111, 4159, 65537, 65539, 65551, 65599, 69631, 262145, 262147, 262159, 262207, 266239, 327679, 1073741825, 1073741827, 1073741839, 1073741887, 1073745919, 1073807359, 1074003967
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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EXAMPLE
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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