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A251170 Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements less than the absolute difference of its antidiagonal elements 1

%I #4 Nov 30 2014 17:42:30

%S 10950,710438,49016166,3387331664,234762060017,16266032347068,

%T 1127188549315094,78108947939153774,5412634621905520518,

%U 375073042253075612436,25991014278400491346836,1801069823478932107711102

%N Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having the minimum of its diagonal elements less than the absolute difference of its antidiagonal elements

%C Column 3 of A251175

%H R. H. Hardin, <a href="/A251170/b251170.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 30 2014

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)