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A189954
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1/4 the number of arrangements of 5 nonzero numbers x(i) in -n..n with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero
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1
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8, 72, 384, 1246, 3247, 6733, 13034, 22220, 36293, 55724, 82485, 116630, 162360, 219198, 290165, 376419, 481243, 606253, 754108, 927521, 1130575, 1364106, 1631281, 1935163, 2280562, 2673957, 3110403, 3602734, 4147102, 4757233, 5423413
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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 with n=3
..1....1....2....1....1...-2....3....2....1....1....3....3....3...-3....2....3
.-2....2....1...-3....3....1...-3...-2...-3....1...-2....1....1...-3....2...-3
.-1...-1...-3...-1...-2....3....1...-2...-2...-3...-1...-2....1....3....2....1
.-2....3...-3...-2....3...-1...-1....1....1...-1...-3...-1...-1....3...-2...-3
.-2....1....2....2....1...-3....1....1...-1...-3....3...-3...-1...-3....2...-2
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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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