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A222504 Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order 1
0, 4, 4, 35, 87, 496, 1335, 7552, 21382, 122942, 348597, 2045395, 5812073, 34558802, 98272393, 589386556, 1678849694, 10123122248, 28893573238, 174842616458, 500084523708, 3033764103592, 8694157659203, 52844583851218, 151707321284408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A222509

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

All solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A189743 A089542 A222285 * A226008 A145109 A181858

Adjacent sequences:  A222501 A222502 A222503 * A222505 A222506 A222507

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 23 2013

STATUS

approved

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Last modified October 22 01:48 EDT 2021. Contains 348160 sequences. (Running on oeis4.)