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Search: id:A086105
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| A086105 |
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Adding, multiplying and exponentiating cycle of the previous two terms similar to A039941. |
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+0
1
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| 0, 1, 1, 1, 1, 2, 2, 4, 6, 24, 4738381338321616896, 4738381338321616920, 22452257707354557353808363243511480320
(list; graph; listen)
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OFFSET
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1,6
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FORMULA
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a(1)=0, a(2)=1, a(n): if n mod 3 is 0: a(n)=a(n-2) + a(n-1), if n mod 3 is 1: a(n)=a(n-2) * a(n-1), if n mod 3 is 2: a(n)=a(n-2)^a(n-1).
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EXAMPLE
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a(11) = a(9)^a(10)=6^24 because 11 mod 3 is 2.
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CROSSREFS
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Cf. A039941.
Sequence in context: A069925 A080611 A072707 this_sequence A084701 A113815 A110946
Adjacent sequences: A086102 A086103 A086104 this_sequence A086106 A086107 A086108
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KEYWORD
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easy,nonn
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AUTHOR
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Anthony Peterson (civ2buf(AT)ricochet.com), Jul 09 2003
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EXTENSIONS
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The next 2 terms are (6^24)^((6^24)*(6^24+24)) and (6^24)^((6^24) * (6^24 + 24)) + (6^24) * (6^24 + 24).
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