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Number of (n+1)X(2+1) 0..3 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise
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%I #5 Jan 15 2014 08:24:50

%S 2982,103106,3493283,102505743,2937817702,78357821891,2048901015407,

%T 51582880207651,1280585994429075,31146056902464824,750829114676769986,

%U 17900362458855209223,424545394570941211292,10009989668346734288085

%N Number of (n+1)X(2+1) 0..3 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise

%C Column 2 of A235747

%H R. H. Hardin, <a href="/A235744/b235744.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..2..3..3....0..3..1....0..0..0....2..0..2....3..1..3....1..1..1....1..1..2

%e ..1..0..3....1..1..2....2..2..1....2..0..2....3..3..1....1..2..1....0..0..0

%e ..2..2..1....2..0..0....0..0..2....1..0..1....3..0..3....1..0..2....1..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 15 2014