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A183960
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Number of strings of numbers x(i=1..9) in 0..n with sum i^2*x(i) equal to n*81
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1
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3, 37, 339, 1805, 7250, 23611, 65909, 163588, 369777, 775045, 1525468, 2847243, 5078854, 8712108, 14442500, 23231857, 36384941, 55641864, 83284699, 122267246, 176362928, 250341134, 350161711, 483206291, 658533921, 887179738, 1182476762
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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=3
..0....1....2....0....3....0....2....3....3....2....0....3....3....2....1....3
..2....1....0....1....3....2....3....3....0....1....0....0....3....1....0....3
..3....2....2....2....2....2....2....1....2....2....2....1....1....1....2....0
..3....0....0....2....0....2....0....0....0....0....1....3....2....2....2....0
..3....3....1....0....1....0....0....1....2....0....0....0....1....3....3....0
..1....0....1....3....2....2....0....0....3....2....0....1....0....2....1....1
..1....0....2....0....1....1....1....1....0....3....0....3....0....1....0....0
..0....1....1....0....1....1....0....1....1....0....2....0....0....0....0....3
..0....1....0....1....0....0....2....1....0....0....1....0....2....0....1....0
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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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