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A128476
Structure counts for certain radical benzenoidal structures (see Cash and Dias paper for precise definition).
8
20, 999, 189792, 153915460
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OFFSET
0,1
LINKS
Table of n, a(n) for n=0..3.
Gordon G. Cash and Jerry Ray Dias,
Computation, Properties and Resonance Topology of Benzenoid Monoradicals and Polyradicals and the Eigenvectors Belonging to Their Zero Eigenvalues
, J. Math. Chem., 30 (2001), 429-444.
CROSSREFS
Cf.
A008793
,
A128476
-
A128484
.
Sequence in context:
A349964
A347856
A128482
*
A160132
A138915
A006427
Adjacent sequences:
A128473
A128474
A128475
*
A128477
A128478
A128479
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, May 08 2007
STATUS
approved
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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)