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A005909
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a(n) = [ tau*a(n-1) ] + [ tau*a(n-2) ].
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0
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0, 2, 3, 7, 15, 35, 80, 185, 428, 991, 2295, 5316, 12314, 28525, 66078, 153070, 354588, 821407, 1902799, 4407857, 10210855, 23653572, 54793793, 126930502, 294036085, 681138245, 1577865210, 3655144370
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OFFSET
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0,2
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COMMENTS
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LINKS
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MATHEMATICA
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RecurrenceTable[{a[0]==0, a[1]==2, a[n]==Floor[GoldenRatio*a[n-1]]+ Floor[ GoldenRatio*a[n-2]]}, a[n], {n, 30}] (* Harvey P. Dale, Jan 11 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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STATUS
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approved
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