A326695 Langton's ant with three cell colors: color of the cell the ant moves to at the end of iteration n: 0 for white, 1 for black, 2 for gray.

0, 0, 0, 1, 0, 0, 0, 2, 1, 1, 1, 0, 1, 1, 1, 1, 2, 2, 0, 0, 2, 1, 1, 0, 2, 1, 2, 2, 0, 2, 1, 0, 0, 2, 1, 1, 2, 2, 0, 0, 0, 0, 1, 0, 0, 0, 2, 1, 1, 1, 0, 1, 1, 1, 1, 2, 2, 0, 2, 1, 0, 2, 1, 2, 2, 0, 0, 2, 1, 1, 0, 0, 2, 1, 1, 2, 2, 0, 2, 1, 0, 2, 1, 2, 2, 0, 0

Offset: 0

Author

Felix Fröhlich, Jul 19 2019

Keywords

• nonn

Comments

On a white square, turn 90 degrees right, change the color to black, then move forward one unit.

On a black square, turn 90 degrees left, change the color to gray, then move forward one unit.

On a gray square, turn 180 degrees, change the color to white, then move forward one unit.

Examples

			See illustrations in Fröhlich, 2019.
		

Links

• Felix Fröhlich, Illustration of iterations 0-50, 2019.

Crossrefs

Cf. A261990, A326693, A326694.

Formula

a(n+276) = a(n). - Rémy Sigrist, Jul 20 2019

Extensions

More terms from Rémy Sigrist, Jul 20 2019