OFFSET
0,3
COMMENTS
The car starts at square 0 and thereafter moves, according to the rules of Racetrack with von Neumann neighborhood (see A351042), to the lowest numbered unvisited square. The spiral numbering is described in A316328. After 146 steps, the car cannot move to any unvisited square, so the sequence is finite with 147 terms.
LINKS
Pontus von Brömssen, Table of n, a(n) for n = 0..146
Pontus von Brömssen, Trajectory of the Racetrack car in A351043.
Wikipedia, Racetrack
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Pontus von Brömssen, Jan 30 2022
STATUS
approved