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Search: id:A006444
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| A006444 |
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Number of 2-connected planar maps with n edges.
(Formerly M0804)
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+0
1
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| 0, 1, 2, 3, 6, 14, 30, 77, 196, 525, 1414, 3960, 11056, 31636, 90818, 264657, 774146, 2289787, 6798562, 20354005, 61164374, 184985060, 561433922, 1712696708, 5241637812
(list; graph; listen)
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OFFSET
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1,3
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
T. R. S. Walsh, personal communication.
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CROSSREFS
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Sequence in context: A152092 A087293 A106364 this_sequence A032047 A032065 A099968
Adjacent sequences: A006441 A006442 A006443 this_sequence A006445 A006446 A006447
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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