OFFSET
0,4
COMMENTS
This allows two single pentagonal rings among otherwise hexagonal rings.
The terms occur in groups of 4: X, Y, X, Y, ...
REFERENCES
J. Brunvoll, B. N. Cyvin, S. J. Cyvin, G. Brinkmann and J. Bornhoft, Z. Naturforsch., 51a, 1073 (1996).
S. J. Cyvin, B. N. Cyvin and J. Brunvoll, J. Molec. Struct. (Theochem), 281, 229 (1993).
J. R. Dias, Chem. Phys. Lett., 185, 10 (1991).
J. R. Dias, J. Chem. Inf. Comput. Sci., 32, 203-209 (1992). (*)
J. R. Dias, J. Chem. Inf. Comput. Sci. 33, 117 (1993).
J. R. Dias, Discr. App. Math., 67, 79 (1996).
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.]
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 10 2007
STATUS
approved