login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A324448 Number of labeled cyclic chord diagrams with n chords such that the minimal chord length equals four. 2

%I

%S 1,10,141,2107,35568,661329,13444940,297333278,7122103435,

%T 183969320652,5102519835609,151340386825771,4782068352314304,

%U 160422533608810186,5695524314835911655,213389274860898491690,8414796730663230017112,348422910620718837979244

%N Number of labeled cyclic chord diagrams with n chords such that the minimal chord length equals four.

%H Alois P. Heinz, <a href="/A324448/b324448.txt">Table of n, a(n) for n = 4..404</a>

%F a(n) = A324430(n) - A324431(n).

%Y Column k=4 of A324429.

%Y Cf. A324430, A324431.

%K nonn

%O 4,2

%A _Alois P. Heinz_, Feb 28 2019

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 28 09:09 EDT 2022. Contains 354112 sequences. (Running on oeis4.)