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 A253816 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically 1

%I #4 Jan 14 2015 07:02:54

%S 47816,181070,554638,1713952,5585260,19866443,64664493,209048111,

%T 630001617,1924934567,5709557722,16907821580,49606011484,146306387392,

%U 435972233308,1306430490778,3954599777085,12004238466384,36735298554255

%N Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically

%C Column 4 of A253820

%H R. H. Hardin, <a href="/A253816/b253816.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 14 2015

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Last modified September 13 00:40 EDT 2024. Contains 375857 sequences. (Running on oeis4.)