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A183319 Number of n X 7 binary arrays with an element zero only if there are an even number of ones to its left and an even number of ones above it.

%I A183319 #12 Aug 02 2025 14:25:48
%S A183319 34,250,3305,31428,343035,3437801,35629548,360327392,3674032121,
%T A183319 37171418048,376812203313,3809267878552,38525903428706,
%U A183319 389213738128583,3932484616050161,39713438364928384,401069370226611064,4049515179562143177,40887644784074526836,412792720508937690701
%N A183319 Number of n X 7 binary arrays with an element zero only if there are an even number of ones to its left and an even number of ones above it.
%H A183319 R. H. Hardin, <a href="/A183319/b183319.txt">Table of n, a(n) for n = 1..200</a>
%e A183319 Some solutions for 5 X 7:
%e A183319 ..0..0..1..1..0..0..0....0..1..1..0..0..0..0....1..1..0..0..0..0..0
%e A183319 ..1..1..1..1..0..0..0....0..1..1..0..0..0..0....1..1..0..1..1..0..0
%e A183319 ..1..1..1..1..0..0..1....1..1..0..0..0..1..1....0..0..0..1..1..0..0
%e A183319 ..0..0..1..1..1..1..1....1..1..0..0..1..1..1....1..1..0..0..0..0..0
%e A183319 ..1..1..0..0..1..1..0....0..0..0..1..1..0..1....1..1..0..1..1..0..1
%Y A183319 Column 7 of A183322.
%K A183319 nonn
%O A183319 1,1
%A A183319 _R. H. Hardin_, Jan 03 2011