Number of reduced words of length n in the Weyl group D_8.

Terms

a(0) =1a(1) =8a(2) =35a(3) =112a(4) =293a(5) =664a(6) =1350a(7) =2520a(8) =4388a(9) =7208a(10) =11263a(11) =16848a(12) =24248a(13) =33712a(14) =45425a(15) =59480a(16) =75853a(17) =94384a(18) =114766a(19) =136544a(20) =159125a(21) =181800a(22) =203777a(23) =224224a(24) =242318a(25) =257296a(26) =268504a(27) =275440a(28) =277788a(29) =275440