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A076172
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Triangular numbers with a triangular number of divisors which set a new record for number of divisors.
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0
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1, 28, 496, 2016, 41616, 270480, 7874496, 100472400, 3877678080, 103796842500, 171463387200, 1321327507500, 152393548836372480, 583286403740040000, 1900657247182848000, 9130869247932432000000
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OFFSET
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1,2
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COMMENTS
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No more terms < 8.7*10^14. - David Wasserman, Apr 25 2005
a(17) <= 2474502187869188605771776000. - Donovan Johnson, Feb 28 2012
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LINKS
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Table of n, a(n) for n=1..16.
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EXAMPLE
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d(41616) = 45, d(270480) = 120.
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CROSSREFS
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Sequence in context: A140107 A028170 A211677 * A004336 A079598 A212302
Adjacent sequences: A076169 A076170 A076171 * A076173 A076174 A076175
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KEYWORD
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more,nonn
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AUTHOR
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Jason Earls, Nov 01 2002
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EXTENSIONS
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More terms from David Wasserman, Apr 25 2005
a(13)-a(15) from Donovan Johnson, Apr 26 2011
a(16) from Donovan Johnson, Feb 28 2012
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STATUS
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approved
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