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A217970 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 7Xn array.

%I A217970 #8 Jul 22 2025 23:45:26
%S A217970 2187,30013,6261827,465184959,53384245121,5551631519475,
%T A217970 607719550822787,66467669217058347,7265842970977146165,
%U A217970 795941165331076849711,87111425541972126128619,9540203761331937328470249
%N A217970 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 7Xn array.
%C A217970 Row 7 of A217964
%H A217970 R. H. Hardin, <a href="/A217970/b217970.txt">Table of n, a(n) for n = 1..13</a>
%e A217970 Some solutions for n=2
%e A217970 ..1..1....1..1....2..0....0..0....2..0....0..0....2..0....2..1....1..0....0..0
%e A217970 ..2..1....2..1....0..0....0..0....0..0....1..1....0..0....1..1....0..0....2..0
%e A217970 ..1..1....1..0....1..1....1..1....2..0....0..0....0..0....1..1....0..1....0..0
%e A217970 ..1..2....0..0....2..1....0..0....0..0....0..0....0..1....2..0....1..1....2..1
%e A217970 ..1..1....1..2....1..1....0..2....2..2....2..0....2..2....0..0....1..2....1..0
%e A217970 ..1..1....1..1....1..2....1..0....1..1....0..0....2..2....0..1....2..2....0..0
%e A217970 ..0..0....1..2....1..1....0..0....0..0....0..0....2..2....2..2....1..1....0..1
%K A217970 nonn
%O A217970 1,1
%A A217970 _R. H. Hardin_ Oct 16 2012