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A098918
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Product of first n Mersenne primes = Product_{k=1..n} A000668(k).
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3
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3, 21, 651, 82677, 677207307, 88762238935797, 46536887964932201739, 99937205886963012698207462133, 230439507554803283449625488965353401397883657483, 142635146517648430682283003170196535604142636808535322508273273161458426613
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(4) = 82677 because the first 4 Mersenne primes are 2^2-1=3, 2^3-1=7, 2^5-1=31, 2^7-1=127; 3*7*31*127 = 82677.
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MATHEMATICA
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FoldList[Times, 1, Select[Table[2^n-1, {n, Prime[Range[50]]}], PrimeQ]] (* Harvey P. Dale, Jul 10 2013 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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