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Search: id:A144782
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| A144782 |
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Variant of Sylvester's sequence: a(n+1) = a(n)^2 - a(n) + 1, with a(1) = 9 |
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+0
12
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| 9, 73, 5257, 27630793, 763460694178057, 582872231554839914154126117193, 339740038317718918529575265905277902175236102890836244082057, 11542329363612511901005892111664132301757432590570674854817417944492387604250593\ 7357640794991035512177751344518305269193
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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a(n) =2.91801206914107730623214444894134996352995839335383330085312402083876802012832260405611668045651563117787923646098643456447806103907170831^(2^n) a(n+1) = a(n)^2 - a(n) + 1, with a(1) = 8
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MATHEMATICA
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a = {}; r = 9; Do[AppendTo[a, r]; r = r^2 - r + 1, {n, 1, 10}]; a or Table[Round[2.918012069141077306232144448941349963529958393353833300853124020838\ 76802012832260405611668045651563117787923646098643456447806103907170831^(2^n)], {n, 1, 8}] (*Artur Jasinski*)
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CROSSREFS
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A000058, A082732, A144779, A144780, A144781, A144782, A144783, A144784, A144785, A144786, A144787, A144788
Sequence in context: A121246 A086226 A015465 this_sequence A075232 A145524 A037533
Adjacent sequences: A144779 A144780 A144781 this_sequence A144783 A144784 A144785
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KEYWORD
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nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Sep 21 2008
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