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Search: id:A141726
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| A141726 |
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Consider b(n)= 10*A000027(2n) + 3*A000027(2n+1) = 16, 42, 68, 94, 120, 146, 172, 198, 224, 250 ;b(n) mod 9=c(n)=period 9:repeat 7, 6, 5, 4, 3, 2, 1, 0, 8. a(n)=c(n-1)=c(n+8) ,both are nonaplets. Period 9: repeat 8, 7, 6, 5, 4, 3, 2, 1, 0 . Also reverse A010878. |
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3
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| 8, 7, 6, 5, 4, 3, 2, 1, 0, 8, 7, 6, 5, 4, 3, 2, 1, 0, 8, 7, 6, 5, 4, 3, 2, 1, 0, 8, 7, 6, 5, 4, 3, 2, 1, 0
(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)=(2/9)*{(-7/2)*(n mod 9)+[(n+1) mod 9]+[(n+2) mod 9]+[(n+3) mod 9]+[(n+4) mod 9]+[(n+5) mod 9]+[(n+6) mod 9]+[(n+7) mod 9]+[(n+8) mod 9]}, with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Sep 29 2008]
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CROSSREFS
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Sequence in context: A138472 A022964 A023450 this_sequence A031310 A104347 A031311
Adjacent sequences: A141723 A141724 A141725 this_sequence A141727 A141728 A141729
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KEYWORD
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nonn,uned
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Sep 13 2008
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