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A221832 Number of 5 X n arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops or left turns.

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%I A221832 #5 Apr 25 2023 14:29:02
%S A221832 0,292,41618,4755445,570066685,68573607669,8233561918895,
%T A221832 988927665068644,118765199887208210
%N A221832 Number of 5 X n arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops or left turns.
%C A221832 Row 5 of A221828.
%e A221832 Some solutions for n=3
%e A221832 ..1..1..1....1..1..1....1..2..1....0..1..1....0..2..0....0..1..1....1..1..0
%e A221832 ..1..0..1....0..2..2....0..1..0....0..1..2....2..2..1....0..1..2....1..3..0
%e A221832 ..1..2..1....1..1..1....1..2..0....1..1..1....1..0..0....0..2..2....0..1..0
%e A221832 ..2..1..1....0..3..1....1..2..2....2..0..2....0..3..2....1..1..2....0..3..1
%e A221832 ..0..2..0....0..1..0....0..2..0....1..1..1....0..2..0....0..1..1....1..3..0
%Y A221832 Cf. A221828.
%K A221832 nonn
%O A221832 1,2
%A A221832 _R. H. Hardin_, Jan 26 2013

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