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A298274 Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero. 0
0, 4, 129, 10679, 3214459, 3328434344, 11799327975543, 143597352796799615, 5998900161419245960408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A298280.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A298280.

Sequence in context: A057134 A041495 A188315 * A299136 A117897 A001425

Adjacent sequences:  A298271 A298272 A298273 * A298275 A298276 A298277

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 16 2018

STATUS

approved

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Last modified July 13 13:48 EDT 2020. Contains 335688 sequences. (Running on oeis4.)