Number of compositions of n into distinct parts where each part i is marked with a word of length i over a denary alphabet whose letters appear in alphabetical order.
A261848
Number of compositions of n into distinct parts where each part i is marked with a word of length i over a denary alphabet whose letters appear in alphabetical order.
Terms
- a(0) =1a(1) =10a(2) =55a(3) =1320a(4) =5115a(5) =40502a(6) =849695a(7) =3005860a(8) =17729140a(9) =101710180a(10) =2427338628a(11) =7149947740a(12) =39019448520a(13) =172243529680a(14) =967216439310
External references
- oeis: A261848