Graphs with no isolated vertices

[franktaw at netscape.net]

Does anybody know what A006647 through A006651 are?  All five
sequences are described as "Number of graphs with no isolated vertices."

Number of graphs with no isolated vertices is A002494 (except the
offset should be 1, not 0; I already submitted a change to Neil for 
this).

Franklin T. Adams-Watters

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