OFFSET
1,2
COMMENTS
The path-avoiding snail takes steps of unit length if doing so does not cause it to collide with its trail. If a unit length step would cause a collision, it travels halfway to its trail. After every step the snail may turn left or right or remain straight.
LINKS
Peter Kagey, Number of steps the path-avoiding snail must take before a step size of (2n-1)/2^k?, Mathematics Stack Exchange.
CROSSREFS
KEYWORD
nonn,walk
AUTHOR
Peter Kagey, Mar 05 2018
STATUS
approved