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A209716 T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having distinct clockwise edge differences 9

%I

%S 24,175,175,1241,2710,1241,8876,40600,40600,8876,63280,614935,1277340,

%T 614935,63280,451762,9278940,40731729,40731729,9278940,451762,3223192,

%U 140274002,1293734407,2744311427,1293734407,140274002,3223192,23003132

%N T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having distinct clockwise edge differences

%C Table starts

%C .......24.........175...........1241..............8876................63280

%C ......175........2710..........40600............614935..............9278940

%C .....1241.......40600........1277340..........40731729...........1293734407

%C .....8876......614935.......40731729........2744311427.........183988612894

%C ....63280.....9278940.....1293734407......183988612894.......26024000948100

%C ...451762...140274002....41170011836....12365282426546.....3690894707522275

%C ..3223192..2118517533..1308905451923...830023337140244...522757733883587522

%C .23003132.32012611741.41634764453267.55752055566749390.74095286689410395475

%H R. H. Hardin, <a href="/A209716/b209716.txt">Table of n, a(n) for n = 1..144</a>

%e Some solutions for n=4 k=3

%e ..1..0..3..2....0..0..1..0....0..1..0..3....3..2..2..0....1..0..0..0

%e ..3..2..3..0....1..3..3..3....2..3..1..0....1..3..0..3....0..3..1..3

%e ..0..2..0..1....0..0..1..0....0..3..0..3....0..1..3..1....1..0..1..0

%e ..2..3..1..3....2..3..1..3....0..1..0..1....1..3..0..3....1..3..3..1

%e ..2..0..3..2....0..3..0..3....3..3..3..1....1..0..1..1....1..0..1..2

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Mar 11 2012

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Last modified February 1 02:31 EST 2023. Contains 359981 sequences. (Running on oeis4.)