Number of permutations of 1..n with the sequence of sums of 5 adjacent elements having exactly 3 maxima.

A179726

Number of permutations of 1..n with the sequence of sums of 5 adjacent elements having exactly 3 maxima.

Terms

    a(0) =0a(1) =22680a(2) =680400a(3) =13305600a(4) =222868800a(5) =3156753600a(6) =41571129600a(7) =545536992000

External references