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 A281651 Number of nX5 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. 1

%I

%S 8,2128,67884,1887730,48871479,1205962480,28906723792,677956602812,

%T 15640786492090,356203262306048,8028074180509946,179390514013544068,

%U 3979861287645844782,87757822187992152076,1924969472275395326566

%N Number of nX5 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Column 5 of A281653.

%H R. H. Hardin, <a href="/A281651/b281651.txt">Table of n, a(n) for n = 1..65</a>

%e Some solutions for n=3

%e ..0..1..0..0..2. .0..1..2..1..0. .0..1..0..1..0. .0..1..0..1..0

%e ..2..2..0..1..0. .1..0..2..1..0. .0..1..2..2..2. .1..0..0..1..0

%e ..1..1..0..2..0. .0..2..1..0..2. .1..0..2..0..1. .1..2..0..1..0

%Y Cf. A281653.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 26 2017

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Last modified March 24 02:45 EDT 2023. Contains 361454 sequences. (Running on oeis4.)