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 A209913 T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences 9

%I

%S 62,562,562,5008,13098,5008,44770,295448,295448,44770,399930,6711168,

%T 16664508,6711168,399930,3573388,152153160,948609890,948609890,

%U 152153160,3573388,31926146,3452051294,53888573444,135833193008,53888573444

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

%C Table starts

%C ........62...........562.............5008................44770

%C .......562.........13098...........295448..............6711168

%C ......5008........295448.........16664508............948609890

%C .....44770.......6711168........948609890.........135833193008

%C ....399930.....152153160......53888573444.......19391662870652

%C ...3573388....3452051294....3063300023090.....2771380588485262

%C ..31926146...78298719958..174099838817590...395928291655518846

%C .285247762.1776153151954.9895452271443782.56572313966664992566

%H R. H. Hardin, <a href="/A209913/b209913.txt">Table of n, a(n) for n = 1..144</a>

%e Some solutions for n=4 k=3

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

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

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

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

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

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_ Mar 15 2012

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Last modified May 18 03:30 EDT 2022. Contains 353783 sequences. (Running on oeis4.)