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A251316 Number of (n+1)X(7+1) 0..1 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements 1

%I #4 Dec 01 2014 13:49:16

%S 2189,20484,186162,1720147,16024915,149982413,1401489913,13088358653,

%T 122472226217,1147464543755,10745979550709,100582710069148,

%U 941698101355544,8820201458359056,82614010198580274,773674969786165964

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

%C Column 7 of A251317

%H R. H. Hardin, <a href="/A251316/b251316.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A251316/a251316.txt">Empirical recurrence of order 68</a>

%F Empirical recurrence of order 68 (see link above)

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 01 2014

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Last modified April 26 01:44 EDT 2024. Contains 371989 sequences. (Running on oeis4.)