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A298188 Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero. 0
1, 8, 92, 1609, 45143, 1863192, 114087318, 10570868743, 1486791095951 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A298195.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A298195.

Sequence in context: A305967 A113353 A081624 * A299083 A184142 A137159

Adjacent sequences:  A298185 A298186 A298187 * A298189 A298190 A298191

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 14 2018

STATUS

approved

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Last modified November 27 02:30 EST 2020. Contains 338677 sequences. (Running on oeis4.)