Number of reduced words of length n in the Weyl group A_15.

Terms

a(0) =1a(1) =15a(2) =119a(3) =664a(4) =2924a(5) =10813a(6) =34900a(7) =100913a(8) =266338a(9) =650658a(10) =1487262a(11) =3208036a(12) =6574987a(13) =12876702a(14) =24210652a(15) =43874857a(16) =76893687a(17) =130701986a(18) =216008661a(19) =347854815a(20) =546871981a(21) =840732790a(22) =1265769513a(23) =1868715733a(24) =2708503701a(25) =3858025899a(26) =5405745562a(27) =7457019331a(28) =10134977992