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A221654 Number of nX4 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out left turns 1

%I

%S 4,165,5879,233781,9205038,361920243,14231277957,559508202559,

%T 21998529416773,864916824326146,34006078606756565,1337021958499590092,

%U 52567889662651586240,2066819505041258667820,81261447625183841077280

%N Number of nX4 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out left turns

%C Column 4 of A221655

%H R. H. Hardin, <a href="/A221654/b221654.txt">Table of n, a(n) for n = 1..26</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 21 2013

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Last modified November 27 06:10 EST 2021. Contains 349363 sequences. (Running on oeis4.)