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A128481 Structure counts for certain radical benzenoidal structures (see Cash and Dias paper for precise definition). 0
2, 20, 306, 7376, 273956, 15345156, 1274990124, 155024945978, 27422185371264, 6981850496603886, 2547185424690611836 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
CROSSREFS
Sequence in context: A246482 A124211 A277308 * A367862 A177397 A360342
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, May 08 2007
STATUS
approved

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Last modified May 25 11:08 EDT 2024. Contains 372788 sequences. (Running on oeis4.)