A219131 - OEIS

%I #6 Nov 20 2012 17:05:47

%S 81,253,6981,42231,717585,5940377,80892559,781927421,9569579009,

%T 99563194119,1158353288989,12479863472959,141758613941473,

%U 1552733071485933,17438598795150161,192510267581544599

%N Number of 4Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 4Xn array

%C Row 4 of A219128

%H R. H. Hardin, <a href="/A219131/b219131.txt">Table of n, a(n) for n = 1..24</a>

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 12 2012