login
A281127
Number of nX5 0..2 arrays with no element equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
1
8, 1364, 48828, 923678, 15835126, 250872018, 3803844412, 55967077710, 805490418258, 11401091303006, 159276872973197, 2201845802718422, 30176071542405161, 410576191407205012, 5552067892695798994
OFFSET
1,1
COMMENTS
Column 5 of A281129.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..2..2..1. .0..1..1..1..0. .0..1..2..0..2. .0..1..2..2..0
..2..0..1..1..2. .0..2..0..2..1. .0..2..1..2..0. .0..1..0..1..2
..0..2..0..2..1. .2..1..0..2..0. .2..1..0..1..1. .0..2..2..0..2
CROSSREFS
Cf. A281129.
Sequence in context: A168575 A286315 A270112 * A001418 A123268 A088080
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 15 2017
STATUS
approved