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A189949
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1/4 the number of arrangements of n+1 nonzero numbers x(i) in -7..7 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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16, 75, 889, 13034, 168737, 2095080, 26586582, 346371666, 4569825052, 60616719909, 807520929855, 10805101528251, 145152790595820, 1956318942197183, 26437935517478725, 358117322511949885
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