

A230188


Number of 5Xn 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2x(i,j)


1



0, 513, 16815, 1603431, 133265847, 11393567289, 967087903539, 82226647665621, 6988859258823513, 594060143921819223, 50495027179295395167, 4292081456142986073615, 364827090034511080822419
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OFFSET

1,2


COMMENTS

Row 5 of A230184


LINKS

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


EXAMPLE

Some solutions for n=3
..2..0..2....0..2..1....1..1..2....0..2..2....1..1..0....0..2..0....2..0..2
..1..1..1....1..1..0....2..0..2....0..0..2....0..2..1....1..1..2....2..0..2
..0..2..1....0..2..1....1..1..0....2..1..0....0..1..1....2..0..1....2..1..1
..1..1..1....0..1..1....0..2..1....1..2..2....0..2..2....1..1..1....1..0..2
..0..2..0....1..0..2....1..1..1....2..0..2....0..0..2....0..2..0....2..1..1


CROSSREFS

Sequence in context: A076338 A237620 A111344 * A223651 A321565 A017681
Adjacent sequences: A230185 A230186 A230187 * A230189 A230190 A230191


KEYWORD

nonn


AUTHOR

R. H. Hardin, Oct 11 2013


STATUS

approved



