Number of permutations of order n with the length of the longest run equal to 7.

A230130

Number of permutations of order n with the length of the longest run equal to 7.

Terms

    a(0) =2a(1) =28a(2) =362a(3) =4720a(4) =64020a(5) =913440a(6) =13760472a(7) =219040274a(8) =3681354658a(9) =65231186514

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