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A300103 Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 0
0, 4, 57, 1041, 59014, 7603542, 1781758380, 1206489116900, 2190341526343270 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A300108.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300108.

Sequence in context: A298764 A299562 A299459 * A358687 A209317 A231491

Adjacent sequences: A300100 A300101 A300102 * A300104 A300105 A300106

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 25 2018

STATUS

approved

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Last modified December 1 01:13 EST 2022. Contains 358453 sequences. (Running on oeis4.)