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A180391
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Number of permutations of 1..n with the permutation and its inverse having the same number of maxima
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0
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1, 2, 4, 16, 74, 372, 2484, 18752, 155654, 1489692, 15673104, 179244512, 2245555252, 30338525896
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OFFSET
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1,2
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LINKS
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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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