Number of increasing runs of even length in all permutations of [n].

A097593

Number of increasing runs of even length in all permutations of [n].

Terms

    a(0) =0a(1) =0a(2) =1a(3) =4a(4) =22a(5) =138a(6) =998a(7) =8174a(8) =74898a(9) =759634a(10) =8451862a(11) =102381222a(12) =1341503546a(13) =18907621562a(14) =285259758366

External references