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A006340 An "eta-sequence": [ (n+1)*tau + 1/2 ] - [ n*tau + 1/2 ], tau =(1+ sqrt 5)/2.
(Formerly M0100)
+0
1
2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 2, 1 (list; graph; listen)
OFFSET

0,1

COMMENT

Equals its own "derivative", which is formed by counting the strings of 1's that lie between 2's.

LINKS

T. D. Noe, Table of n, a(n) for n=0..1000

CROSSREFS

Differs from A014675 in many places.

Sequence in context: A022921 A080763 A080573 this_sequence A076371 A106149 A054740

Adjacent sequences: A006337 A006338 A006339 this_sequence A006341 A006342 A006343

KEYWORD

nonn,easy,nice

AUTHOR

D. R. Hofstadter

EXTENSIONS

Extended by njas, Nov 07, 2001

page 1

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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