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 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 8,1 COMMENTS The car starts and finishes on the positive x-axis, 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. LINKS Table of n, a(n) for n=8..32. Pontus von Brömssen, Some optimal Racetrack trajectories for A351351/A351352. Wikipedia, Racetrack EXAMPLE See A351351 for examples. CROSSREFS Cf. A351042, A351350, A351351 (numerators). Sequence in context: A248145 A171398 A113607 * A082586 A160094 A043283 Adjacent sequences: A351349 A351350 A351351 * A351353 A351354 A351355 KEYWORD nonn,frac,more AUTHOR Pontus von Brömssen, Feb 09 2022 STATUS approved

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Last modified April 16 03:28 EDT 2024. Contains 371696 sequences. (Running on oeis4.)