login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

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

%I #4 Jan 26 2015 12:53:30

%S 16240,164408,1553720,13514192,119471400,1054310240,9378850720,

%T 83642043104,747838723984,6692350328688,59911130123536,

%U 536370198043600,4802059524173712,42992172686208464,384902922582518096

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

%C Column 3 of A254168

%H R. H. Hardin, <a href="/A254163/b254163.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A254163/a254163.txt">Empirical recurrence of order 66</a>

%F Empirical recurrence of order 66 (see link above)

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 26 2015