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Number of n X n 0..1 arrays with no 1 adjacent to 1 king-move neighboring 1.
0

%I #6 Apr 26 2020 21:10:49

%S 2,10,205,16059,5651413,7919440725,42862620370029,903073429362722932,

%T 74176314123331508770566,23719867755601900522061492084,

%U 29525329905069152885550681708955468

%N Number of n X n 0..1 arrays with no 1 adjacent to 1 king-move neighboring 1.

%C Diagonal of A297073.

%e Some solutions for n=4

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

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

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

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

%Y Cf. A297073.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 24 2017