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A002028 Colored graphs.
(Formerly M2603 N1030)
+0
1
1, 3, 6, 42, 618, 15990, 668526, 43558242, 4373213298, 677307561630, 162826875512646 (list; graph; listen)
OFFSET

1,2

REFERENCES

Read, R. C.; Wright, E. M.; Colored graphs: A correction and extension. Canad. J. Math. 22 1970 594-596.

R. C. Read, personal communication.

CROSSREFS

Sequence in context: A109491 A085696 A079095 this_sequence A116315 A001886 A092198

Adjacent sequences: A002025 A002026 A002027 this_sequence A002029 A002030 A002031

KEYWORD

nonn

AUTHOR

njas

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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