Number of compositions of n where the (possibly scattered) maximal subsequence of part i with multiplicity j is marked with a word of length j over an a(i-1)-ary alphabet whose letters appear in alphabetical order.
A261894
Number of compositions of n where the (possibly scattered) maximal subsequence of part i with multiplicity j is marked with a word of length j over an a(i-1)-ary alphabet whose letters appear in alphabetical order.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =42a(6) =131a(7) =425a(8) =1405a(9) =4768a(10) =16355a(11) =57112a(12) =200908a(13) =715945a(14) =2563950a(15) =9275069a(16) =33670472a(17) =123183827a(18) =451968108a(19) =1668602686a(20) =6173397451a(21) =22959862085a(22) =85535398344a(23) =320037864300
External references
- oeis: A261894