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A235650
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Number of (n+1)X(2+1) 0..3 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise
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1
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2272, 75176, 2723053, 63898897, 1494414258, 26134209539, 455581431165, 6406214756041, 89887090918670, 1064493306802318, 12586134344284850, 129441171852288472, 1329548683623300725, 12136852429775201010
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=2
..1..3..2....2..0..3....0..3..3....0..0..2....1..1..2....1..2..3....1..0..1
..0..1..3....3..0..3....0..3..2....2..1..1....2..2..2....2..3..3....2..1..3
..1..3..2....2..3..2....2..3..3....3..1..1....0..3..3....3..0..1....1..1..3
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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