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Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1

%I #4 Jan 17 2015 09:48:15

%S 119040,2589968,50414592,1052857184,20975776000,424261181216,

%T 8415694011136,167533350155040,3315015958304000,65750261230687264,

%U 1301328247318549760,25772170438510291232,509844817010765307136

%N Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Row 4 of A253871

%H R. H. Hardin, <a href="/A253874/b253874.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A253874/a253874.txt">Empirical recurrence of order 86</a>

%F Empirical recurrence of order 86 (see link above)

%e Some solutions for n=1

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 17 2015