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Search: id:A005978
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| A005978 |
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Number of dependable interval graphs with n nodes.
(Formerly M3554)
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+0
1
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| 0, 0, 0, 0, 1, 4, 19, 93, 539, 3474, 24856, 192972, 1613219, 14410374, 136920388, 1378542639, 14663082556, 164340455701, 1936286904952, 23932267735948, 309701296575063
(list; graph; listen)
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OFFSET
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1,6
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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).
Hanlon, Phil; Counting interval graphs. Trans. Amer. Math. Soc. 272 (1982), no. 2, 383-426.
P. J. Hanlon, personal communication.
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CROSSREFS
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Sequence in context: A121179 A131552 A122369 this_sequence A083065 A137636 A027618
Adjacent sequences: A005975 A005976 A005977 this_sequence A005979 A005980 A005981
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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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