OFFSET
0,12
LINKS
Rémy Sigrist, Table of n, a(n) for n = 0..15000
Felix Fröhlich, Coordinates of Langton's ant.
Wikipedia, Langton's ant.
FORMULA
a(n+104) = a(n) - 2 for n > 9975. - Andrey Zabolotskiy, Jul 05 2016
CROSSREFS
KEYWORD
sign,look
AUTHOR
Felix Fröhlich, Jun 19 2016
STATUS
approved