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A006981 Modular lattices on n nodes.
(Formerly M1133)
2
1, 1, 1, 1, 2, 4, 8, 16, 34, 72, 157, 343 (list; graph; refs; listen; history; internal format)
OFFSET

0,5

REFERENCES

P. D. Lincoln, personal communication.

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

CROSSREFS

Cf. A006982, A006966.

Sequence in context: A088325 A006210 A096812 * A003427 A045648 A166354

Adjacent sequences:  A006978 A006979 A006980 * A006982 A006983 A006984

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 17:27 EST 2012. Contains 205644 sequences.