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A303257 Number of 6Xn 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
0, 361, 5918, 55624, 1105676, 19457754, 322544617, 5622650429, 96079232228, 1646124445916, 28299650557400, 485285360460841, 8326738600567856, 142906680823826208, 2452047535254667099, 42076285291701652140 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A303254.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Cf. A303254.

Sequence in context: A302476 A231975 A112078 * A253675 A206249 A231996

Adjacent sequences: A303254 A303255 A303256 * A303258 A303259 A303260

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 20 2018

STATUS

approved

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Last modified December 5 21:40 EST 2022. Contains 358594 sequences. (Running on oeis4.)