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A052295
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a(n) = (n*(n+1)/2)!.
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6
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1, 1, 6, 720, 3628800, 1307674368000, 51090942171709440000, 304888344611713860501504000000, 371993326789901217467999448150835200000000, 119622220865480194561963161495657715064383733760000000000, 12696403353658275925965100847566516959580321051449436762275840000000000000
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OFFSET
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0,3
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COMMENTS
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LINKS
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FORMULA
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MATHEMATICA
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PROG
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(Sage) [(factorial(binomial(n, 2))) for n in range(1, 15)] # Zerinvary Lajos, Nov 30 2009
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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Jeevan Chana Rai (Karanjit.Rai(AT)btinternet.com), Feb 09 2000
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EXTENSIONS
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STATUS
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approved
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