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A230650 Number of nX6 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).

%I A230650 #6 Jun 02 2025 08:43:59
%S A230650 0,33,177,2547,28161,337977,3951657,46564959,547445439,6440488155,
%T A230650 75754392573,891094042215,10481688337035,123293830743177,
%U A230650 1450276232412603,17059265522993919,200664184001736495
%N A230650 Number of nX6 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).
%C A230650 Column 6 of A230652
%H A230650 R. H. Hardin, <a href="/A230650/b230650.txt">Table of n, a(n) for n = 1..210</a>
%F A230650 Empirical: a(n) = 8*a(n-1) +50*a(n-2) -22*a(n-3) -437*a(n-4) -1133*a(n-5) -548*a(n-6) +2623*a(n-7) +5757*a(n-8) +6227*a(n-9) -194*a(n-10) -2664*a(n-11) -3827*a(n-12) +2327*a(n-13) -5991*a(n-14) -4452*a(n-15) -3865*a(n-16) -6535*a(n-17) -536*a(n-18) -639*a(n-19) -373*a(n-20) -29*a(n-21) +76*a(n-22) -16*a(n-23) for n>24
%e A230650 Some solutions for n=5
%e A230650 ..1..x..2..x..0..x....1..x..1..x..2..x....1..x..2..x..2..x....2..x..0..x..1..x
%e A230650 ..x..1..x..0..x..2....x..1..x..0..x..1....x..1..x..0..x..2....x..0..x..2..x..1
%e A230650 ..2..x..1..x..0..x....0..x..1..x..1..x....2..x..2..x..0..x....2..x..1..x..1..x
%e A230650 ..x..0..x..1..x..2....x..2..x..0..x..1....x..0..x..2..x..1....x..2..x..1..x..2
%e A230650 ..2..x..2..x..0..x....0..x..2..x..1..x....2..x..0..x..1..x....0..x..1..x..0..x
%K A230650 nonn
%O A230650 1,2
%A A230650 _R. H. Hardin_, Oct 27 2013