Number of multisets of nonempty words with a total of n letters over 5-ary alphabet such that within each word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.
A292720
Number of multisets of nonempty words with a total of n letters over 5-ary alphabet such that within each word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =14a(4) =67a(5) =343a(6) =1431a(7) =6620a(8) =31539a(9) =151680a(10) =769374a(11) =3586756a(12) =17500630a(13) =85727012a(14) =420986605a(15) =2116435479a(16) =10254063794a(17) =50697425138a(18) =251055167912
External references
- oeis: A292720