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A099435
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Number of simple class-1 graphs on n nodes.
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2
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OFFSET
| 1,2
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COMMENTS
| First six terms look like the Euler transform of A099436, but the 7th isn't. - Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 30 2007; Eric Weisstein (eric@Weisstein.com), Nov 4 2011
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LINKS
| Eric Weisstein's World of Mathematics, Class 1 Graph
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CROSSREFS
| Cf. A099436 (counts of connected class 1 graphs).
Cf. A099437 (counts of class 2 graphs).
Sequence in context: A089752 A171190 A007029 * A140453 A037169 A058953
Adjacent sequences: A099432 A099433 A099434 * A099436 A099437 A099438
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KEYWORD
| nonn
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com), Oct 15 2004
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EXTENSIONS
| Corrected and extended by Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 30 2007
"Correction" reverted by Eric Weisstein (eric(AT)weisstein.com), Nov 4 2011
a(8) from Eric Weisstein (eric(AT)weisstein.com), Nov 17 2011
a(9) from Eric Weisstein (eric(AT)weisstein.com), Nov 21 2011
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