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A269192 Number of nX6 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once. 1

%I

%S 2592,168252,16629436,1567933676,145995171708,13377149358556,

%T 1209655310225276,108189166610803900,9588279038550679252,

%U 843282890295576773948,73686476215233408557636,6403039770601949503501428

%N Number of nX6 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once.

%C Column 6 of A269194.

%H R. H. Hardin, <a href="/A269192/b269192.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..2..3..3..1..1..1. .1..0..0..2..2..3. .0..0..0..1..0..2. .2..3..3..3..1..1

%e ..3..2..2..3..3..3. .0..1..0..2..3..1. .1..0..0..0..0..0. .3..3..1..1..1..1

%Y Cf. A269194.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 20 2016

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Last modified October 20 10:43 EDT 2021. Contains 348100 sequences. (Running on oeis4.)