Number of reduced words of length n in the Weyl group B_16.

Terms

a(0) =1a(1) =16a(2) =135a(3) =800a(4) =3739a(5) =14672a(6) =50252a(7) =154224a(8) =432174a(9) =1121456a(10) =2724183a(11) =6248128a(12) =13624922a(13) =28409312a(14) =56910017a(15) =109964720a(16) =205651975a(17) =373334400a(18) =659553555a(19) =1136450288a(20) =1913567669a(21) =3154109024a(22) =5096972454a(23) =8086166144a(24) =12609525259a(25) =19348999600a(26) =29245158395a(27) =43578960064