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!)
A323926 Polycyclic aromatic hydrocarbons (for precise definition see He and He, 1986). 0
1, 1, 2, 6, 15, 51, 190, 765, 3226 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..9.

Wenchen He and Wenjie He, Generation and enumeration of planar polycyclic aromatic hydrocarbons, Tetrahedron 42.19 (1986): 5291-5299. See Table 1.

CROSSREFS

Cf. A003104, A323923-A323930.

Sequence in context: A291848 A196961 A255540 * A256982 A047870 A027287

Adjacent sequences:  A323923 A323924 A323925 * A323927 A323928 A323929

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Feb 09 2019

STATUS

approved

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 27 07:47 EDT 2021. Contains 348272 sequences. (Running on oeis4.)