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A231136 Number of (n+1)X(6+1) black-square subarrays of 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

%I A231136 #7 Jul 23 2025 06:16:39
%S A231136 120,3688,124644,4066129,137063228,4509445997,151928497692,
%T A231136 5001540387953,168507419403536,5547511896771810,186902346005124780,
%U A231136 6153112021568081647,207305819737090195456,6824826623169051569950,229936709033952423239528
%N A231136 Number of (n+1)X(6+1) black-square subarrays of 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.
%C A231136 Column 6 of A231137
%H A231136 R. H. Hardin, <a href="/A231136/b231136.txt">Table of n, a(n) for n = 1..210</a>
%H A231136 R. H. Hardin, <a href="/A231136/a231136.txt">Empirical recurrence of order 90</a>
%F A231136 Empirical recurrence of order 90 (see link above)
%e A231136 Some solutions for n=2
%e A231136 ..x..0..x..1..x..1..x....x..0..x..1..x..1..x....x..0..x..1..x..0..x
%e A231136 ..1..x..2..x..2..x..0....1..x..0..x..1..x..0....0..x..2..x..2..x..2
%e A231136 ..x..2..x..0..x..1..x....x..2..x..2..x..2..x....x..1..x..1..x..0..x
%K A231136 nonn
%O A231136 1,1
%A A231136 _R. H. Hardin_, Nov 04 2013