OFFSET
1,2
COMMENTS
Column 5 of A271684.
EXAMPLE
Some solutions for n=4
.....0........5........6........5........5........0........5........0
....0.5......2.0......5.1......4.1......5.1......5.0......6.1......6.6
...0.5.1....6.0.0....4.1.6....0.5.3....4.2.5....2.6.6....6.4.1....2.2.5
..0.4.4.1..2.3.4.3..4.3.0.1..0.4.4.1..0.0.4.1..0.0.1.1..0.1.0.0..0.1.3.0
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 12 2016
STATUS
approved