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A136005
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Numbers of the form 2^p - 1, where p is a prime number that is not the sum, minus 1, of a Pythagorean triple.
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10
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3, 7, 31, 127, 8191, 131071, 524287, 2147483647, 137438953471, 2199023255551, 8796093022207, 9007199254740991, 2305843009213693951, 147573952589676412927, 9444732965739290427391
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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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a(3)=31 because A136003(3)=5 and 2^5=32 and 32-1=31.
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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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