OFFSET
0,2
COMMENTS
Adjacencies are forbidden regardless of the direction of the Manhattan lattice at the point in question.
LINKS
Sean A. Irvine, Table of n, a(n) for n = 0..50
Sean A. Irvine, Java program (github)
CROSSREFS
KEYWORD
nonn,walk
AUTHOR
Sean A. Irvine, Jul 28 2020
STATUS
approved