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Search: id:A152500
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| A152500 |
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1/4 the number of permutations of 3 indistinguishable copies of 1..n with exactly 3 local maxima. |
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| 0, 1, 231, 21490, 1476084, 90050080, 5228286336, 297239712256, 16749407726592
(list; graph; listen)
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