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A251110 Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements 1

%I #4 Nov 30 2014 07:11:56

%S 6544,67518,549944,4633551,39326009,336432413,2909254399,25213072536,

%T 217873020830,1882537978094,16299682192948,141211940464804,

%U 1222431286544815,10577974456269485,91555094515329885,792579395389803397

%N Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements

%C Column 5 of A251113

%H R. H. Hardin, <a href="/A251110/b251110.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 30 2014

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Last modified August 30 17:27 EDT 2024. Contains 375545 sequences. (Running on oeis4.)