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A081117 Differences of Beatty sequence for cube root of 2. +0
1
1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1 (list; graph; listen)
OFFSET

0,4

FORMULA

a(n)=floor((n+1)*2^(1/3))-floor(n*2^(1/3))

PROGRAM

(PARI) a(n)=floor((n+1)*2^(1/3))-floor(n*2^(1/3))

CROSSREFS

Sequence in context: A107453 A138191 A069291 this_sequence A129252 A022929 A115362

Adjacent sequences: A081114 A081115 A081116 this_sequence A081118 A081119 A081120

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 16 2003

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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