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A317437
Squares visited by a (1,5)-leaper on a spirally numbered board and moving to the lowest available unvisited square at each step.
10
0, 84, 22, 32, 24, 30, 16, 28, 18, 26, 20, 34, 54, 4, 52, 6, 50, 44, 14, 46, 12, 36, 58, 8, 60, 88, 124, 178, 230, 48, 74, 38, 10, 40, 62, 92, 140, 186, 238, 176, 122, 86, 80, 114, 154, 104, 72, 116, 158, 106, 64, 94, 130, 174, 168, 218, 276, 42, 66, 2, 68, 98, 136
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
.
The sequence is finite: at step 14569, square 25962 is visited, after which there are no unvisited squares within one move.
FORMULA
a(n) = A317438(n+1) - 1.
CROSSREFS
Sequence in context: A093676 A221416 A130432 * A304379 A317916 A066689
KEYWORD
nonn,fini,full
AUTHOR
Daniël Karssen, Jul 28 2018
STATUS
approved