A128478 Structure counts for certain radical benzenoidal structures (see Cash and Dias paper for precise definition).

7376, 5013752, 10457948644

Offset

0,1

Links

Table of n, a(n) for n=0..2.

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. A128475-A128484.

Sequence in context: A235951 A219084 A284925 * A257498 A372693 A043589

Adjacent sequences: A128475 A128476 A128477 * A128479 A128480 A128481

Keyword

nonn,more,bref

Author

N. J. A. Sloane, May 08 2007

Status

approved