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A308563
Langton's ant on a three-dimensional grid: iterations where the ant passes through the origin.
2
0, 4, 8, 18, 130, 2206, 4326, 4650, 16344, 16814, 47942, 48000, 49928
OFFSET
1,2
COMMENTS
For the rules applying to this ant, see A325953.
The sequence is finite, with 49928 being the last term. The ant never reaches the origin again after that, since it starts building a highway pattern at iteration 93475.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
STATUS
approved