A110859 - OEIS

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A110859

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

0, 0, 1, 3, 12, 26, 95, 907 (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: A071355 A199242 A169678 * A190904 A125614 A061936` `Adjacent sequences: A110856 A110857 A110858 * A110860 A110861 A110862`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Sep 19 2005`

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Last modified February 15 13:22 EST 2012. Contains 205801 sequences.