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A282187 Number of nX4 0..2 arrays with no element equal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. 1

%I #4 Feb 08 2017 07:49:17

%S 0,8,2919,418178,48031921,4907541118,469203486998,42928015621172,

%T 3806828257481312,329774740386192866,28049508537324967898,

%U 2350870780417385140186,194645816227581507757308

%N Number of nX4 0..2 arrays with no element equal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%C Column 4 of A282189.

%H R. H. Hardin, <a href="/A282187/b282187.txt">Table of n, a(n) for n = 1..57</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A282189.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 08 2017

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Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)