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A033995 Number of bipartite graphs with n nodes. +0
14
1, 2, 3, 7, 13, 35, 88, 303, 1119, 5479, 32303, 251135, 2527712, 33985853, 611846940, 14864650924, 488222721992, 21712049275198, 1308300679611469, 106897965189674291 (list; graph; listen)
OFFSET

1,2

REFERENCES

R. C. Read and R. J. Wilson, An Atlas of Graphs, Oxford, 1998.

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

Eric Weisstein's World of Mathematics, Bicolorable Graph

Eric Weisstein's World of Mathematics, n-Colorable Graph

CROSSREFS

Cf. A005142.

Equals A076278(n) + 1.

Sequence in context: A045611 A006840 A123408 this_sequence A013917 A056893 A051130

Adjacent sequences: A033992 A033993 A033994 this_sequence A033996 A033997 A033998

KEYWORD

nonn,nice

AUTHOR

R. C. Read (rcread(AT)math.uwaterloo.ca)

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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