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A203083 Number of (n+2)X(n+2) binary arrays avoiding patterns 000 and 101 in rows and columns.

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%I A203083 #7 Jul 22 2025 17:00:27
%S A203083 98,787,7558,112334,2370796,68989536,2942039652,179655879540,
%T A203083 15600032557062,1955530152142929,351771423028876126,
%U A203083 90632490221136217305
%N A203083 Number of (n+2)X(n+2) binary arrays avoiding patterns 000 and 101 in rows and columns.
%C A203083 Diagonal of A203091
%e A203083 Some solutions for n=3
%e A203083 ..1..1..1..1..1....1..0..0..1..0....0..1..1..1..0....1..1..1..0..0
%e A203083 ..1..1..0..0..1....1..0..0..1..0....0..1..1..0..0....0..1..1..1..1
%e A203083 ..1..1..0..0..1....1..1..1..1..1....1..1..0..0..1....0..1..1..1..1
%e A203083 ..1..1..1..1..0....1..1..1..1..1....1..0..0..1..0....1..1..1..1..0
%e A203083 ..1..1..1..1..0....1..0..0..1..1....0..0..1..0..0....1..1..1..0..0
%K A203083 nonn
%O A203083 1,1
%A A203083 _R. H. Hardin_ Dec 29 2011

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