Number of reduced words of length n in the Weyl group B_10.

Terms

a(0) =1a(1) =10a(2) =54a(3) =210a(4) =659a(5) =1772a(6) =4235a(7) =9218a(8) =18590a(9) =35178a(10) =63064a(11) =107910a(12) =177297a(13) =281060a(14) =431598a(15) =644136a(16) =936915a(17) =1331286a(18) =1851685a(19) =2525468a(20) =3382588a(21) =4455100a(22) =5776486a(23) =7380800a(24) =9301642a(25) =11570980a(26) =14217849a(27) =17266966a(28) =20737309a(29) =24640716