Number of reduced words of length n in the Weyl group D_40.

A162402

Number of reduced words of length n in the Weyl group D_40.

Terms

    a(0) =1a(1) =40a(2) =819a(3) =11440a(4) =122589a(5) =1074488a(6) =8020830a(7) =52427192a(8) =306189025a(9) =1622495952a(10) =7895219982a(11) =35623107520a(12) =150221110689a(13) =595982725640

External references