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A299355 Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero. 0

%I

%S 1,8,70,649,8269,121386,2195326,55671460,2065637548,105768593369,

%T 7817766240120,873950649404684,140851588459236089

%N Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Diagonal of A299359.

%e Some solutions for n=5

%e ..0..0..0..1..1. .0..1..0..1..0. .0..0..1..1..1. .0..1..0..1..0

%e ..0..1..1..1..0. .1..0..0..0..1. .1..0..0..0..1. .0..0..0..0..1

%e ..0..1..1..1..1. .0..0..0..0..0. .0..0..0..0..1. .1..0..0..0..0

%e ..1..1..1..1..0. .1..0..0..0..1. .1..0..0..0..0. .1..0..0..0..1

%e ..1..0..1..0..1. .0..1..0..1..0. .0..1..0..1..0. .1..1..1..0..0

%Y Cf. A299359.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 08 2018

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Last modified September 24 21:38 EDT 2022. Contains 356949 sequences. (Running on oeis4.)