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Number of linear chord diagrams having n chords and no chord length larger than nine.
2

%I #4 Oct 21 2017 20:04:04

%S 1,1,3,15,105,945,10395,135135,2027025,34459425,218243025,1512548793,

%T 11451456921,94099903993,832822929881,7850100744697,77247769844585,

%U 766602148661941,7301487795390325,63860693057569633,549669975975395633,4765146317902742829

%N Number of linear chord diagrams having n chords and no chord length larger than nine.

%H Alois P. Heinz, <a href="/A294001/b294001.txt">Table of n, a(n) for n = 0..1000</a>

%Y Column k=9 of A293960.

%K nonn,easy

%O 0,3

%A _Alois P. Heinz_, Oct 21 2017