Number of permutations of [n] with exactly four increasing runs of even length.

A317284

Number of permutations of [n] with exactly four increasing runs of even length.

Terms

    a(0) =1385a(1) =31493a(2) =460929a(3) =6632158a(4) =99592344a(5) =1489928080a(6) =22566676855a(7) =354404597721

External references