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A173096
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a(1) = 3, a(2) = 4, a(n) = a(n-2)*a(n-1)-a(n-2)-a(n-1).
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5
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3, 4, 5, 11, 39, 379, 14363, 5428835, 77968913907, 423280290755965603, 33002704548058529678235461411, 13969394376835442790478317113350745782558418819, 461027795334010317786933009714496751421279215574147082960119439306256813379
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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=3; b=4; lst={a, b}; Do[c=a*b-a-b; AppendTo[lst, c]; a=b; b=c, {n, 12}]; lst
nxt[{a_, b_}]:={b, a*b-a-b}; NestList[nxt, {3, 4}, 15][[;; , 1]] (* Harvey P. Dale, Aug 31 2023 *)
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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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