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 A234435 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings) 0

%I

%S 32,582,17200,896112,72539432,11533082488,2561421896376,

%T 1379501791207360,834355608891492928,1756003516595468503128

%N Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings)

%C Diagonal of A234443

%e Some solutions for n=3

%e ..1..0..1..2....1..2..2..2....1..0..1..2....2..2..1..1....1..2..2..2

%e ..1..1..1..1....2..2..1..0....0..0..0..2....0..1..1..2....2..2..1..0

%e ..2..1..2..1....2..1..1..1....1..2..1..2....1..1..2..2....2..1..1..1

%e ..2..0..2..2....1..1..0..1....0..2..0..0....0..1..1..2....1..1..2..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 26 2013

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Last modified May 6 16:03 EDT 2021. Contains 343586 sequences. (Running on oeis4.)