OFFSET
1,2
COMMENTS
Board is numbered with the square spiral:
.
17--16--15--14--13
| |
18 5---4---3 12 .
| | | |
19 6 1---2 11 .
| | |
20 7---8---9--10 .
|
21--22--23--24--25--26
LINKS
Daniël Karssen, Table of n, a(n) for n = 1..10000
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) = A317466(n-1) + 1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Daniël Karssen, Jul 29 2018
STATUS
approved