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A324606
The x-coordinates of squares visited by knight moves on a spirally numbered board and moving to the lowest available unvisited square at each step.
2
0, 2, 1, -1, 1, 0, -1, 1, -1, 0, 2, 1, 3, 2, 0, 2, 3, 1, -1, -2, 0, -2, -3, -2, -1, -3, -2, -1, 1, 3, 4, 3, 1, -1, -3, -4, -2, -3, -2, 0, 2, 3, 2, 0, -2, -3, -4, -5, -3, -1, 1, 3, 4, 5, 4, 2, 0, -2, -4, -5, -6, -4, -5, -3, -4, -2, -3, -4, -2, 0, 2, 4, 5, 4, 3
OFFSET
1,2
LINKS
N. J. A. Sloane and Brady Haran, The Trapped Knight, Numberphile video (2019)
Visualization of walk using Plot 2. - Peter Kagey, Jul 15 2019
FORMULA
a(n) = A174344(A316667(n)).
CROSSREFS
A324607 gives y-coordinates.
Sequence in context: A261029 A117195 A156606 * A194087 A107034 A117410
KEYWORD
sign,fini,full,walk
AUTHOR
Peter Kagey, Jun 06 2019
STATUS
approved