Number of permutations of [n] having exactly six alternating descents.

A302899

Number of permutations of [n] having exactly six alternating descents.

Terms

    a(0) =272a(1) =3407a(2) =46348a(3) =556952a(4) =6847224a(5) =84889638a(6) =1085246904a(7) =14322115212a(8) =195951082944

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