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A251401 Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements 1

%I

%S 1856748750,61144538351375,1996093452861010528,

%T 65265944559607354012467,2133718605852583377537309624,

%U 69758457677840521663637000916478,2280638230704458493043162111553219014

%N Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements

%C Column 7 of A251402

%H R. H. Hardin, <a href="/A251401/b251401.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 02 2014

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Last modified March 30 10:09 EDT 2020. Contains 333125 sequences. (Running on oeis4.)