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A264932
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a(1) = 1, a(2) = 3, a(n)= H_4(a(n-1),a(n-2)).
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1
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OFFSET
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1,2
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COMMENTS
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See A054871 for definitions and key links.
Possible other sequence with the same 4 entries:
a(1)=1;
a(2)= 3;
a(n)=a(n-1)^a(n-2)^a(n-2);
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LINKS
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MATHEMATICA
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RecurrenceTable[{a[1]==1, a[2]==3, a[n]==a[n-1]^a[n-2]^a[n-2]}, a, {n, 4}] (* Vincenzo Librandi, Dec 17 2015 *)
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PROG
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(Magma) I:=[1, 3]; [n le 2 select I[n] else Self(n-1)^Self(n-2)^Self(n-2): n in [1..5]]; // Vincenzo Librandi, Dec 17 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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STATUS
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approved
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