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A263043
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a(n)=n for n = 1..5; for n>=6, a(n) = a(n-5)*a(n-3)*a(n-1) - a(n-4)*a(n-2).
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0
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1, 2, 3, 4, 5, 7, 41, 587, 16231, 3323246, 13654552343, 9086706651503151, 17725851219520961162682469, 3928527920941441960398255684700870518131, 118631177920294161985904111240557003105520588984802122222460259
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OFFSET
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1,2
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LINKS
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PROG
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(PARI) a(n) = if(n<6, n, a(n-5)*a(n-3)*a(n-1)-a(n-4)*a(n-2));
(Magma) [n le 5 select n else Self(n-5)*Self(n-3)*Self(n-1)-Self(n-4)*Self(n-2): n in [1..20]]; // Vincenzo Librandi, Oct 09 2015
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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