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A007230 Number of free subsets of multiplicative group of GF(2^n).
(Formerly M1738)
0
0, 1, 2, 7, 12, 30, 54, 127, 226, 508, 930, 2046, 3780, 8182, 15288, 32767, 61680, 131042, 248346, 524284 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

P. Bouchard and Y.-N. Yeh, Finding f-free subsets of maximal cardinality, Séries Formelles et Combinatoire Algébrique, 4th colloquium, 15-19 Juin 1992, Montréal, Université du Québec à Montréal, pp. 11-17.

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

LINKS

Table of n, a(n) for n=1..20.

CROSSREFS

Sequence in context: A293621 A175879 A102371 * A290234 A059053 A032025

Adjacent sequences:  A007227 A007228 A007229 * A007231 A007232 A007233

KEYWORD

nonn

AUTHOR

Simon Plouffe

STATUS

approved

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Last modified January 17 10:59 EST 2019. Contains 319218 sequences. (Running on oeis4.)