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A173100
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a(1)=2, a(2)=2, a(n)=2*a(n-2)*a(n-1)-a(n-2)-a(n-1).
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0
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2, 2, 4, 10, 66, 1244, 162898, 405126082, 131988051722292, 106943604398142563191514, 28230555977340642743866391573263146370, 6038154820760673175690853635193471535603786459126013221470476
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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a=2; b=2; lst={a, b}; Do[c=2*a*b-a-b; AppendTo[lst, c]; a=b; b=c, {n, 12}]; lst
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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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