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A183797 1/4 the number of (n+1)X5 0..3 arrays with no 2X2 subblock having sum 6 1

%I #5 Mar 31 2012 12:35:54

%S 125050,62693809,31282399226,15624102535570,7801858146547239,

%T 3896032216049375462,1945547111978093787994,971543622805762575749749,

%U 485157231780036807933863898,242271766602122184381901757482

%N 1/4 the number of (n+1)X5 0..3 arrays with no 2X2 subblock having sum 6

%C Column 4 of A183802

%H R. H. Hardin, <a href="/A183797/b183797.txt">Table of n, a(n) for n = 1..109</a>

%e Some solutions for 3X5

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 07 2011

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Last modified April 24 07:20 EDT 2024. Contains 371921 sequences. (Running on oeis4.)