Number of linear chord diagrams having n chords and no chord length larger than five.
A293997
Number of linear chord diagrams having n chords and no chord length larger than five.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =105a(5) =945a(6) =3465a(7) =14857a(8) =72905a(9) =393565a(10) =2152693a(11) =10317169a(12) =49808117a(13) =247455873a(14) =1256019673a(15) =6371895677a(16) =31696702545a(17) =157383838325a(18) =785587613797
External references
- oeis: A293997