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%I A233030 #3 Dec 03 2013 07:56:02
%S A233030 333,3132,55642,566933,7169782,74939353,839537894,8735284526,
%T A233030 93454206487,969444236906,10189585915899
%N A233030 Number of (n+1)X(3+1) 0..3 arrays with row and column sums nondecreasing, and no adjacent elements equal
%C A233030 Column 3 of A233031
%e A233030 Some solutions for n=3
%e A233030 ..2..0..2..1....1..0..3..2....0..1..2..1....0..1..0..2....0..1..0..1
%e A233030 ..1..2..1..2....0..3..0..3....2..3..0..3....1..3..2..0....2..0..3..0
%e A233030 ..0..3..2..3....2..0..3..2....3..0..3..2....0..2..3..2....3..2..1..2
%e A233030 ..1..2..3..2....1..2..1..3....0..3..2..3....3..1..2..3....0..3..2..3
%K A233030 nonn
%O A233030 1,1
%A A233030 _R. H. Hardin_, Dec 03 2013

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