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Search: id:A121949
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| A121949 |
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Number of isomeric aza-benzenoids with one nitrogen atom and n hexagons. |
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+0
1
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OFFSET
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1,2
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REFERENCES
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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.
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EXAMPLE
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If n=5 then the number of isomeric aza-benzenoids with one nitrogen atom is 210. Here n is the number of hexagons.
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CROSSREFS
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Adjacent sequences: A121946 A121947 A121948 this_sequence A121950 A121951 A121952
Sequence in context: A084480 A099553 A119694 this_sequence A005144 A064835 A025590
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KEYWORD
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nonn
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Sep 04 2006
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