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A007064 Numbers not of form "nearest integer to n*tau", tau=(1+sqrt(5))/2.
(Formerly M3298)
+0
7
1, 4, 7, 9, 12, 14, 17, 20, 22, 25, 27, 30, 33, 35, 38, 41, 43, 46, 48, 51, 54, 56, 59, 62, 64, 67, 69, 72, 75, 77, 80, 82, 85, 88, 90, 93, 96, 98, 101, 103, 106, 109, 111, 114, 117, 119, 122, 124, 127, 130, 132, 135 (list; graph; listen)
OFFSET

1,2

COMMENT

First column of Stolarsky array.

Comment from Thomas Baruchel (baruchel(AT)users.sourceforge.net), Nov 04, 2003: this sequence and A057843 are very similar - this can be seen if the terms equal to 4 are aligned.

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

C. Kimberling, "Interspersions and dispersions," Proceedings of the American Mathematical Society 117 (1993) 313-321.

C. Kimberling, "Stolarsky interspersions," Ars Combinatoria 39 (1995) 129-138.

K. B. Stolarsky, A set of generalized Fibonacci sequences such that each natural number belongs to exactly one, Fib. Quart., 15 (1977), 224.

LINKS

C. Kimberling, Interspersions

N. J. A. Sloane, Classic Sequences

FORMULA

a(n) =floor[n*(1+tau)-tau/2] =floor[n*2.6180...-0.8090...]. - Henry Bottomley (se16(AT)btinternet.com), Sep 03 2001

CROSSREFS

Complement of A007067. Cf. A035506.

Sequence in context: A048973 A092861 A007072 this_sequence A086824 A080574 A007066

Adjacent sequences: A007061 A007062 A007063 this_sequence A007065 A007066 A007067

KEYWORD

nonn,easy,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein (mira(AT)math.berkeley.edu)

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.


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