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A128482 Structure counts for certain radical benzenoidal structures (see Cash and Dias paper for precise definition). 0
20, 999, 59886, 5013752, 604073400, 105179890458, 26398415877712, 9510671755316374 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
CROSSREFS
Sequence in context: A269644 A349964 A347856 * A128476 A160132 A138915
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, May 08 2007
STATUS
approved

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Last modified May 23 18:34 EDT 2024. Contains 372765 sequences. (Running on oeis4.)