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Search: id:A059417
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| A059417 |
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Start with 1; square; add 2; subtract 1; repeat. |
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+0
1
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| 1, 1, 3, 2, 4, 6, 5, 25, 27, 26, 676, 678, 677, 458329, 458331, 458330, 210066388900, 210066388902, 210066388901, 44127887745906175987801, 44127887745906175987803, 44127887745906175987802
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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Seen on a quiz.
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LINKS
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Harry J. Smith, Table of n, a(n) for n=0,...,36
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PROGRAM
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(PARI) { for (n = 0, 36, if (n==0, a=1, if (n%3 == 1, a*=a, if (n%3==2, a+=2, if (n%3==0, a-=1)))); write("b059417.txt", n, " ", a); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 26 2009]
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CROSSREFS
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Sequence in context: A116942 A093573 A126290 this_sequence A078824 A014685 A021312
Adjacent sequences: A059414 A059415 A059416 this_sequence A059418 A059419 A059420
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KEYWORD
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easy,nonn
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AUTHOR
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Jonathan Scharff (jonscharff(AT)home.com), Jan 30 2001
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), Jan 31 2001. The next term has 46 digits.
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