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Search: id:A152498
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| A152498 |
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1/3 of the number of permutations of 2 indistinguishable copies of 1..n with exactly 6 local maxima. |
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| 0, 0, 0, 0, 0, 76739, 42734373, 10478384089, 1717626773713, 222419564005134
(list; graph; listen)
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