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A222454 Number of nX6 0..1 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order 1
4, 23, 194, 1722, 16440, 161779, 1752892, 18608623, 201223272, 2201719251, 24272631638, 268705232398, 2985516009592, 33280348746620, 371933566446760, 4165471546299038, 46738884729278494, 525315130609406149 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A222456

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..71

EXAMPLE

Some solutions for n=4

..0..0..0..0..0..0....0..0..0..0..0..0....0..0..1..1..1..1....0..1..0..1..1..1

..1..1..0..0..0..0....0..0..0..0..0..0....0..0..1..1..1..0....1..1..1..1..1..1

..1..1..1..0..0..0....0..0..1..0..0..0....1..1..1..1..1..1....1..1..1..1..1..0

..1..1..1..0..0..0....0..0..1..1..1..1....1..1..1..1..1..1....1..1..1..1..0..0

CROSSREFS

Sequence in context: A317967 A186117 A108953 * A099869 A265677 A221371

Adjacent sequences:  A222451 A222452 A222453 * A222455 A222456 A222457

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 20 2013

STATUS

approved

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Last modified April 23 03:26 EDT 2019. Contains 322380 sequences. (Running on oeis4.)