OFFSET
1,2
COMMENTS
Column 2 of A271617.
EXAMPLE
Some solutions for n=4
.....6........5........0........0........5........5........0........5
....5.1......2.6......4.3......4.3......2.0......2.5......5.0......2.6
...2.0.0....5.0.1....5.5.0....5.4.3....6.4.3....5.2.5....2.4.3....4.3.1
..4.3.4.3..2.0.4.3..2.2.4.3..2.0.4.3..0.1.4.3..2.0.2.0..4.3.4.3..0.0.4.3
Element moves: 0=itself 1=nw 2=ne 3=w 4=e 5=sw 6=se, reciprocals total 7
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 10 2016
EXTENSIONS
a(15)-a(18) from Alois P. Heinz, Jun 15 2017
STATUS
approved