This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A128481 #6 Nov 20 2023 07:03:21 %S A128481 2,20,306,7376,273956,15345156,1274990124,155024945978,27422185371264, %T A128481 6981850496603886,2547185424690611836 %N A128481 Structure counts for certain radical benzenoidal structures (see Cash and Dias paper for precise definition). %H A128481 Gordon G. Cash and Jerry Ray Dias, <a href="https://doi.org/10.1023/A:1015194511140">Computation, Properties and Resonance Topology of Benzenoid Monoradicals and Polyradicals and the Eigenvectors Belonging to Their Zero Eigenvalues</a>, J. Math. Chem., 30 (2001), 429-444. %Y A128481 Cf. A008793, A128476-A128484. %K A128481 nonn,more %O A128481 0,1 %A A128481 _N. J. A. Sloane_, May 08 2007