Number of compositions of n where the (possibly scattered) maximal subsequence of part i with multiplicity j is marked with a word of length i*j over an n-ary alphabet whose letters appear in alphabetical order and all n letters occur exactly once in the composition.
A261774
Number of compositions of n where the (possibly scattered) maximal subsequence of part i with multiplicity j is marked with a word of length i*j over an n-ary alphabet whose letters appear in alphabetical order and all n letters occur exactly once in the composition.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =8a(4) =29a(5) =117a(6) =696a(7) =4286a(8) =25458a(9) =156843a(10) =1156246a(11) =9521096a(12) =79140828a(13) =665427791a(14) =5610420458a(15) =49509430318a(16) =475540600965
External references
- oeis: A261774