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A222322 Number of nX2 0..1 arrays with exactly floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order 1
0, 0, 0, 7, 0, 32, 0, 168, 0, 948, 0, 5279, 0, 29868, 0, 170435, 0, 978324, 0, 5646204, 0, 32726780, 0, 190380464, 0, 1110922620, 0, 6499777527, 0, 38116781580, 0, 223982494824, 0, 1318530693372, 0, 7774269747257, 0, 45903969026388, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Column 2 of A222328

LINKS

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

EXAMPLE

All solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A280143 A280144 A157779 * A228762 A046273 A167317

Adjacent sequences:  A222319 A222320 A222321 * A222323 A222324 A222325

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 15 2013

STATUS

approved

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Last modified November 29 21:32 EST 2021. Contains 349416 sequences. (Running on oeis4.)