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A302003 Number of 6Xn 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero. 1
0, 89, 155, 530, 17800, 100176, 1366374, 12824770, 133115004, 1366157014, 13941336537, 143149041167, 1463519003210, 14995308550903, 153525291778069, 1572142108724428, 16098534802420026, 164847528194904576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A301999.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Cf. A301999.

Sequence in context: A247114 A075589 A142031 * A094657 A142124 A044259

Adjacent sequences:  A302000 A302001 A302002 * A302004 A302005 A302006

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 30 2018

STATUS

approved

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Last modified June 26 05:05 EDT 2022. Contains 354877 sequences. (Running on oeis4.)