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!)
A129023 Isomer numbers for the indacenoid constant-isomer series. 1

%I #3 Mar 30 2012 16:50:41

%S 1,1,1,3,6,7,6,12,28,26,28,51

%N Isomer numbers for the indacenoid constant-isomer series.

%C This allows two single pentagonal rings among otherwise hexagonal rings.

%C The terms occur in groups of 4: X, Y, X, Y, ...

%D J. Brunvoll, B. N. Cyvin, S. J. Cyvin, G. Brinkmann and J. Bornhoft, Z. Naturforsch., 51a, 1073 (1996).

%D S. J. Cyvin, B. N. Cyvin and J. Brunvoll, J. Molec. Struct. (Theochem), 281, 229 (1993).

%D J. R. Dias, Chem. Phys. Lett., 185, 10 (1991).

%D J. R. Dias, J. Chem. Inf. Comput. Sci., 32, 203-209 (1992). (*)

%D J. R. Dias, J. Chem. Inf. Comput. Sci. 33, 117 (1993).

%D J. R. Dias, Discr. App. Math., 67, 79 (1996).

%D J. R. Dias, The Periodic Table Set as a Unifying Concept in Going from Benzenoid Hydrocarbons to Fullerene Carbons, in "The Periodic Table: Into the 21st Century", Edited by D.H. Rouvray and R. B. King, Research Studies Press Ltd, Baldock, Hertfordshire, England, 2004, 371-396. [See Section 5.2.]

%Y Cf. A129012-A129022.

%K nonn

%O 0,4

%A _N. J. A. Sloane_, May 10 2007

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 March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)