Number of reduced words of length n in the Weyl group A_23.

Terms

a(0) =1a(1) =23a(2) =275a(3) =2276a(4) =14650a(5) =78131a(6) =359214a(7) =1462801a(8) =5380529a(9) =18142125a(10) =56724395a(11) =165980490a(12) =457927079a(13) =1198603761a(14) =2991929700a(15) =7153857324a(16) =16447016616a(17) =36476745510a(18) =78265410550a(19) =162869776650a(20) =329453055975a(21) =649063995030