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A011846
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a(n) = floor( binomial(n,9)/10 ).
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2
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 5, 22, 71, 200, 500, 1144, 2431, 4862, 9237, 16796, 29393, 49742, 81719, 130750, 204297, 312455, 468682, 690690, 1001500, 1430715, 2016007, 2804880, 3856710, 5245125, 7060746
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OFFSET
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0,12
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LINKS
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FORMULA
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a(n) = floor( binomial(n+1,10)/(n+1)). [Gary Detlefs, Nov 23 2011]
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MAPLE
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MATHEMATICA
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PROG
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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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STATUS
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approved
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