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A006346 The Sally sequence: the length of repetition avoided in A006345.
(Formerly M0126)
2
0, 1, 1, 2, 1, 3, 1, 1, 3, 2, 1, 6, 3, 2, 1, 3, 1, 1, 6, 3, 2, 4, 1, 1, 3, 2, 1, 3, 1, 6, 4, 2, 1, 2, 4, 3, 1, 8, 3, 2, 1, 6, 3, 2, 1, 3, 1, 1, 6, 3, 2, 4, 1, 1, 3, 2, 1, 3, 1, 30, 6, 3, 2, 4, 1, 1, 3, 2, 1, 3, 1, 6, 4, 2, 1, 2, 4, 3, 1, 8, 3, 2, 1, 6, 3, 2, 1, 3, 1, 1, 6, 3, 2, 4, 1, 1, 3, 2, 1, 3, 1, 6, 4, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Comment from T. D. Noe, Oct 14 2006: In the first 1000 terms, only patterns of lengths 0, 1, 2, 3, 4, 6, 8, 24, 30 and 108 are avoided.

REFERENCES

N. S. Hellerstein, personal communication to N. J. A. Sloane.

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

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

N. J. A. Sloane, Illustration of initial terms

Eric Weisstein's World of Mathematics, Sally Sequence.

CROSSREFS

Cf. A006345.

Sequence in context: A212623 A229214 A218578 * A088742 A144220 A156826

Adjacent sequences:  A006343 A006344 A006345 * A006347 A006348 A006349

KEYWORD

nonn,nice,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Naohiro Nomoto, May 21 2001

STATUS

approved

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Last modified April 17 09:16 EDT 2014. Contains 240634 sequences.