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A223030 Number of nX4 0..2 arrays with exactly floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..2 order 1
6, 58, 472, 1341, 6472, 15374, 60497, 142610, 499278, 1229381, 3993742, 10383806, 32203849, 87752662, 265166874, 747479421, 2230395230, 6428099474, 19088788221, 55776955238, 165502617034, 487703210601, 1448532737138, 4291268460250 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A223033

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

EXAMPLE

Some solutions for n=3

..0..1..0..1....0..1..2..1....0..1..0..2....0..1..0..1....0..1..0..2

..2..0..2..0....0..0..0..0....2..2..2..1....1..2..1..2....2..2..1..1

..0..1..0..1....2..1..0..1....1..2..2..0....0..1..1..0....1..0..2..0

CROSSREFS

Sequence in context: A197543 A184708 A004301 * A292574 A073848 A141382

Adjacent sequences:  A223027 A223028 A223029 * A223031 A223032 A223033

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 12 2013

STATUS

approved

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Last modified July 1 22:23 EDT 2022. Contains 354984 sequences. (Running on oeis4.)