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A282157 Number of nX4 0..2 arrays with no element unequal 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 07 2017 08:14:20

%S 0,82,37560,680348,12543514,171142988,2215087379,26310131648,

%T 298319340360,3260405598180,34588846625658,358871483776020,

%U 3652908155885933,36615265722360746,362197960230285674

%N Number of nX4 0..2 arrays with no element unequal 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 A282159.

%H R. H. Hardin, <a href="/A282157/b282157.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A282159.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 07 2017

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Last modified May 13 03:50 EDT 2024. Contains 372497 sequences. (Running on oeis4.)