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 A299129 Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 0

%I #6 Jun 15 2020 14:13:15

%S 1,5,30,1261,130924,54173918,83518793627,421314290752028,

%T 7208059773839169432

%N Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Diagonal of A299135.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299135.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 03 2018

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Last modified December 4 07:54 EST 2023. Contains 367557 sequences. (Running on oeis4.)