A110861 - OEIS

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A110861

Number of even isodual (but not self-dual) binary codes of length 2n.

0, 0, 1, 3, 8, 20, 67, 331 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	REFERENCES	`W. C. Huffman, On the classification and enumeration of self-dual codes, Finite Fields Applic., 11 (2005), 451-490.`
	CROSSREFS	`Sequence in context: A009436 A108189 A148768 * A027320 A027319 A066212` `Adjacent sequences: A110858 A110859 A110860 * A110862 A110863 A110864`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Sep 19 2005`

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Last modified February 17 11:46 EST 2012. Contains 206011 sequences.