A317466 Squares visited by a (2,2)-leaper on a spirally numbered board and moving to the lowest available unvisited square at each step.

0, 12, 52, 24, 76, 20, 68, 16, 60, 136, 56, 128, 232, 124, 80, 164, 280, 160, 72, 152, 264, 148, 64, 140, 248, 388, 244, 132, 236, 372, 540, 368, 228, 168, 284, 432, 612, 428, 276, 156, 268, 412, 588, 408, 260, 144, 252, 392, 564, 768, 560, 384, 240, 376

Offset

0,2

Comments

Board is numbered with the square spiral:

.

16--15--14--13--12

| |

17 4---3---2 11 .

| | | |

18 5 0---1 10 .

| | |

19 6---7---8---9 .

|

20--21--22--23--24--25

Links

Daniël Karssen, Table of n, a(n) for n = 0..9999

Daniël Karssen, Figure showing the first 11 steps of the sequence

Daniël Karssen, Figure showing the first 9999 steps of the sequence

Formula

a(n) = A317467(n+1) - 1.

Crossrefs

Cf. A317467, A317468.

Sequence in context: A066757 A225306 A331041 * A045219 A325379 A054410

Adjacent sequences: A317463 A317464 A317465 * A317467 A317468 A317469

Keyword

nonn

Author

Daniël Karssen, Jul 29 2018

Status

approved