OFFSET
1,2
COMMENTS
Column 6 of A220652
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..38
EXAMPLE
Some solutions for n=3 0=self 1=nw 2=n 3=ne 4=w 6=e 7=sw 8=s 9=se (reciprocal directions total 10)
.00.67.46.48.69.47...00.00.00.78.68.48...00.69.46.49.69.47...00.00.78.00.79.00
.36.48.00.28.39.17...00.00.39.27.28.28...00.79.16.48.13.17...00.38.26.34.00.17
.00.26.46.24.36.14...00.00.36.14.26.24...36.46.14.26.34.00...00.26.46.46.34.00
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 17 2012
STATUS
approved