Number of sets of nonempty words with a total of n letters over quinary alphabet such that all letters occur at least once in the set.
A320206
Number of sets of nonempty words with a total of n letters over quinary alphabet such that all letters occur at least once in the set.
Terms
- a(0) =501a(1) =9945a(2) =121710a(3) =1185360a(4) =10096795a(5) =78808600a(6) =578849355a(7) =4067705855a(8) =27649153955a(9) =183168119565
External references
- oeis: A320206