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 A264932 a(1) = 1, a(2) = 3, a(n)= H_4(a(n-1),a(n-2)). 1
 1, 3, 3, 7625597484987 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS 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); LINKS Table of n, a(n) for n=1..4. MATHEMATICA 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 *) PROG (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 CROSSREFS Sequence in context: A076253 A081174 A292832 * A171604 A132139 A045951 Adjacent sequences: A264929 A264930 A264931 * A264933 A264934 A264935 KEYWORD nonn AUTHOR Natan Arie Consigli, Dec 16 2015 STATUS approved

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Last modified May 23 16:36 EDT 2024. Contains 372765 sequences. (Running on oeis4.)