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A301580
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a(n) is the number of positive integers between successive Mersenne primes.
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0
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3, 23, 95, 8063, 122879, 393215, 2146959359, 2305843007066210303, 618970017336847128235868159, 162258657859193720701440560726015, 170141021201192402518323912137873817599
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OFFSET
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1,1
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LINKS
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FORMULA
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EXAMPLE
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a(2) = 23 because there are 23 positive integers between successive Mersenne primes 7 and 31.
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MATHEMATICA
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-1 + Differences@ Array[2^MersennePrimeExponent[#] - 1 &, 12] (* Michael De Vlieger, Apr 21 2018 *)
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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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