A128477 Structure counts for certain radical benzenoidal structures (see Cash and Dias paper for precise definition).

306, 59886, 39045432, 100645429215

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: A221724 A023908 A035843 * A028680 A118282 A220475

Adjacent sequences: A128474 A128475 A128476 * A128478 A128479 A128480

Keyword

nonn,more

Author

N. J. A. Sloane, May 08 2007

Status

approved