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A254014 Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I

%S 2540,7212,26370,98002,279743,774662,2035893,5114873,12474341,

%T 29590558,68901604,158137068,357684484,800611865,1776191086,

%U 3909310915,8548743880,18587419029,40212191986,86599353650,185779037285,397204639125

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

%C Column 2 of A254020

%H R. H. Hardin, <a href="/A254014/b254014.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 22 2015

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Last modified January 17 06:12 EST 2022. Contains 350378 sequences. (Running on oeis4.)