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A231261 Number of (n+1)X(6+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.

%I A231261 #7 Jul 23 2025 06:21:09
%S A231261 23,557,21894,866396,34170727,1350570015,53369789699,2108712981800,
%T A231261 83318930054700,3292096503338981,130077252787397712,
%U A231261 5139609041198810834,203076105223297844491,8023938109223922493851,317041646252827399145319
%N A231261 Number of (n+1)X(6+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.
%C A231261 Column 6 of A231263
%H A231261 R. H. Hardin, <a href="/A231261/b231261.txt">Table of n, a(n) for n = 1..210</a>
%H A231261 R. H. Hardin, <a href="/A231261/a231261.txt">Empirical recurrence of order 67</a>
%F A231261 Empirical recurrence of order 67 (see link above)
%e A231261 Some solutions for n=3
%e A231261 ..0..0..1..1..1..1..1....0..0..0..0..0..0..0....0..0..0..0..0..1..1
%e A231261 ..0..1..1..1..1..1..1....1..1..1..1..1..0..1....0..2..2..0..1..1..0
%e A231261 ..1..1..2..2..2..1..1....1..1..1..1..0..1..1....2..2..0..2..2..0..0
%e A231261 ..2..2..2..2..2..2..2....1..1..1..0..0..0..0....0..0..2..2..2..2..2
%K A231261 nonn
%O A231261 1,1
%A A231261 _R. H. Hardin_, Nov 06 2013