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A127401 Number of segments of the longest possible zigzag paths fitting into a circle of diameter 4 if the path with index n is constructed according to the rules of the "Snakes on a Plane" problem of Al Zimmermann's programming contest. 3
12, 14, 33, 19, 43, 44, 59 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

COMMENTS

Links to the contest rules and to visualizations of the results are given in A127400. Known lower bounds for the next terms are a(10)>=50, a(11)>=77, a(12)>=71.

LINKS

Table of n, a(n) for n=3..9.

CROSSREFS

Cf. A127399 [solutions for container diameter 2], A127400 [solutions for container diameter 3], A122223, A122224, A122226 [solutions for hinge angles excluded from contest].

Sequence in context: A307167 A238228 A214504 * A256786 A106135 A058073

Adjacent sequences:  A127398 A127399 A127400 * A127402 A127403 A127404

KEYWORD

hard,more,nonn

AUTHOR

Hugo Pfoertner, Jan 12 2007

EXTENSIONS

Corrected comment to show increased lower bound for a(12). [ Hugo Pfoertner, May 21 2011]

STATUS

approved

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Last modified December 14 14:20 EST 2019. Contains 329979 sequences. (Running on oeis4.)