A235545 - OEIS

%I #4 Jan 12 2014 05:48:08

%S 988,17658,429443,9618173,229990437,4902247081,99992110087,

%T 1844719926176,31896122665112,509962551465235,7677165540339722,

%U 108748418549947621,1463930492980910949,18776966394074591213,230866934864995304342

%N Number of (n+1)X(5+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise

%C Column 5 of A235548

%H R. H. Hardin, <a href="/A235545/b235545.txt">Table of n, a(n) for n = 1..180</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 12 2014