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A179541 a(n) is the least possible smallest period attainable by the action of a periodic sequence of binary operations <+>,<-> (see A179382,A179480), beginning with 2n-1<+>1 or 2n-1<->1 0
1, 1, 1, 1, 2, 2, 1, 1, 3, 2, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,5

COMMENTS

The minorizing sequence for all sequences of type A179382,A179480 with arbitrary periodic rotation of the binary operations <+>,<->.

LINKS

Table of n, a(n) for n=2..12.

EXAMPLE

Let n=12, 2n-1=23. Considering periodic sequence <+>,<->,<+>,<->,..., we have 23<+>1=3, 23<->3=5, 23<+>5=7, 23<->7=1, 23<+>1=3,... Thus a(12)<=4. It is not difficult to verify that a(12)>3. Thus a(12)=4.

CROSSREFS

Cf. A179382 A179480

Sequence in context: A288533 A093869 A057431 * A057060 A198380 A152805

Adjacent sequences:  A179538 A179539 A179540 * A179542 A179543 A179544

KEYWORD

nonn

AUTHOR

Vladimir Shevelev, Jul 18 2010

STATUS

approved

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Last modified August 20 20:09 EDT 2017. Contains 290837 sequences.