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Search: id:A006932
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| A006932 |
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Number of permutations of [n] with at least one strong fixed point (a permutation p of {1,2,...,n} is said to have j as a strong fixed point if p(k)<j for k<j and p(k)>j for k>j).
(Formerly M2862)
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4
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| 1, 1, 3, 10, 43, 223, 1364, 9643, 77545, 699954, 7013079, 77261803, 928420028, 12085410927, 169413357149, 2544367949634, 40758600588283, 693684669653911, 12499734669634036, 237734433597317987, 4759174459355303521
(list; graph; listen)
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