

A351352


Denominator of the square of the radius of the largest circle, centered at the origin, around which a Racetrack car (using von Neumann neighborhood) can run a full lap in n steps.


5



2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 2, 2, 5, 13, 1, 13, 1, 25, 1, 1, 5, 1, 1
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OFFSET

8,1


COMMENTS

The car starts and finishes on the positive xaxis, as in A351042.
The square of the radius of the largest circle is a rational number, because the squared distance from the origin to a line segment between two points with integer coordinates is always rational.


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CROSSREFS



KEYWORD

nonn,frac,more


AUTHOR



STATUS

approved



