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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A281129.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..113

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

Adjacent sequences:  A281124 A281125 A281126 * A281128 A281129 A281130

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 15 2017

STATUS

approved

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Last modified October 3 16:55 EDT 2022. Contains 357237 sequences. (Running on oeis4.)