login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A122739 Numbers of perifusenes with one internal vertex (see Cyvin et al. for precise definition). 0

%I

%S 1,1,6,24,109,477,2155,9647,43621,197767,901436,4125636,18964119

%N Numbers of perifusenes with one internal vertex (see Cyvin et al. for precise definition).

%H S. J. Cyvin, F. Zhang and J. Brunvoll, <a href="https://dx.doi.org/10.1007/BF01164209">Enumeration of perifusenes with one internal vertex: A complete mathematical solution</a>, J. Math. Chem., 11 (1992), 283-292.

%F a(n) = A038380(n) for n >= 3. - _Georg Fischer_, Nov 02 2018

%Y Cf. A038380.

%K nonn

%O 3,3

%A _N. J. A. Sloane_, Sep 24 2006

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 24 14:44 EDT 2021. Contains 348233 sequences. (Running on oeis4.)