id:A028311 - OEIS Search Results

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Odd numbers n such that {1..n-1} can be partitioned into disjoint sets I, J with 2I = -J (mod n) such that I, J are unions of cyclotomic cosets mod n.

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5, 7, 13, 17, 23, 25, 29, 31, 35, 37 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`F. J. MacWilliams, A. M. Odlyzko, N. J. A. Sloane and H. N. Ward, Self-Dual Codes over GF(4), J. Combin. Theory, A 25 288-318 1978.`
	CROSSREFS	`Cf. A028312.` `Sequence in context: A091301 A040125 A106067 this_sequence A087155 A045442 A095283` `Adjacent sequences: A028308 A028309 A028310 this_sequence A028312 A028313 A028314`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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