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A121973 Number of isomeric aza-benzenoids with six nitrogen atoms. 1
1, 10, 187, 2802, 35384, 388936, 3862098, 35475697, 306558871, 2521963738 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
REFERENCES
N. Trinajstich, Z. Jericevic, J. V. Knop, W. R. Muller and K. Szymanski, "Computer generation of isomeric structures", Pure and Appl. Chem., vol. 55 (1983) pp. 379-390.
LINKS
EXAMPLE
If n=5 then the number of isomeric aza-benzenoids with six nitrogen atoms is 35384. Here n is the number of hexagons.
CROSSREFS
Sequence in context: A364987 A179521 A211102 * A223146 A365175 A239765
KEYWORD
nonn
AUTHOR
Parthasarathy Nambi, Sep 05 2006
STATUS
approved

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Last modified May 22 17:27 EDT 2024. Contains 372758 sequences. (Running on oeis4.)