Number of n-length words w over a 9-ary alphabet {a1,a2,...,a9} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a9) >= 1, where #(w,x) counts the letters x in word w.
A226888
Number of n-length words w over a 9-ary alphabet {a1,a2,...,a9} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a9) >= 1, where #(w,x) counts the letters x in word w.
Terms
- a(0) =362880a(1) =1814400a(2) =16632000a(3) =119750400a(4) =1003242240a(5) =7749181440a(6) =68518850400a(7) =584994009600
External references
- oeis: A226888