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A001548 Number of connected linear spaces with n points.
(Formerly M1270 N0489)
+0
1
1, 1, 0, 1, 1, 2, 4, 13, 42, 308 (list; graph; listen)
OFFSET

0,6

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

Doyen, Jean; Sur le nombre d'espaces lineaires non isomorphes de n points. Bull. Soc. Math. Belg. 19 1967 421-437.

CROSSREFS

Cf. A001199, A001200, A056642.

Sequence in context: A002771 A050624 A135501 this_sequence A115600 A007858 A153930

Adjacent sequences: A001545 A001546 A001547 this_sequence A001549 A001550 A001551

KEYWORD

nonn,hard,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms could be obtained from A056642. - N. J. A. Sloane (njas(AT)research.att.com), Jul 26 2004

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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