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A007233
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Number of free subsets of multiplicative group of GF(7^n ).
(Formerly M3127)
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0
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3, 31, 171, 1575, 8403, 77206, 411771, 3828187, 20176803, 185374380, 988663371, 9083344725, 48444505203, 445083891551, 2373780754971, 22068742956375
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| P. Bouchard and Y.-N. Yeh, Finding f-free subsets of maximal cardinality, S\'{e}ries Formelles et Combinatoire Alg\'{e}brique}, 4th colloquium, 15-19 Juin 1992, Montr\'{e}al, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, pp. 11-17.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A089286 A089287 A125085 * A197892 A198009 A060416
Adjacent sequences: A007230 A007231 A007232 * A007234 A007235 A007236
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KEYWORD
| nonn
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AUTHOR
| Simon Plouffe (simon.plouffe(AT)gmail.com)
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