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Search: id:A006205
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| A006205 |
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Number of inequivalent strong starters in cyclic group of order 2n+1.
(Formerly M0341)
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+0
2
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| 0, 0, 1, 0, 2, 2, 4, 14, 52, 555, 1257, 7934, 66757, 336297, 2558894, 33642945, 250637748, 1653170339
(list; graph; listen)
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OFFSET
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1,5
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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).
CRC Handbook of Combinatorial Designs, 1996, p. 469.
W. L. Kocay et al., On strong starters in cyclic groups, Discrete Math., 56 (1985), 45-60.
Classification of starters, V. Linja-aho and P. R. J. Ostergard, Journal of Combinatorial Mathematics and Combinatorial Computing, to appear. [From Vesa Linja-aho (vesa.linja-aho(AT)tkk.fi), May 06 2009]
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LINKS
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Classification of starters, V. Linja-aho and P. R. J. Ostergard, Journal of Combinatorial Mathematics and Combinatorial Computing, to appear. [From Vesa Linja-aho (vesa.linja-aho(AT)tkk.fi), May 06 2009]
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FORMULA
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Cf. A001443.
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CROSSREFS
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Sequence in context: A019072 A019073 A153959 this_sequence A153968 A153965 A121221
Adjacent sequences: A006202 A006203 A006204 this_sequence A006206 A006207 A006208
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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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EXTENSIONS
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Better definition from Vesa Linja-aho (vesa.linja-aho(AT)tkk.fi), Jul 31 2008
Corrected and extended by Vesa Linja-aho (vesa.linja-aho(AT)tkk.fi), May 06 2009
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