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 A253480 Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically 1

%I

%S 27000,1069400,44878810,1878758740,78704951512,3297669520142,

%T 138204642567680,5791515989673804,242710135725239668,

%U 10171279006748889244,426252400904323368342,17863104607113877927270

%N Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically

%C Column 4 of A253482

%H R. H. Hardin, <a href="/A253480/b253480.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 02 2015

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Last modified December 8 20:37 EST 2021. Contains 349596 sequences. (Running on oeis4.)