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A221754 Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns 0

%I

%S 0,171,1680,117067,3143356,128008894,4330440582,157745434617,

%T 5576943832916,199566264190831,7105753950441404,253532970709774991,

%U 9038233928809650256

%N Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns

%C Column 7 of A221755

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 24 2013

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Last modified January 25 02:53 EST 2021. Contains 340414 sequences. (Running on oeis4.)