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A298964 Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero. 0

%I #6 Jun 15 2020 14:02:15

%S 1,8,219,21098,6892031,7785598672,30241030285680,403845370764198967,

%T 18541589058526001745929

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

%C Diagonal of A298970.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298970.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 30 2018

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Last modified July 14 19:43 EDT 2024. Contains 374323 sequences. (Running on oeis4.)