A145648 - OEIS

This site is supported by donations to The OEIS Foundation.

A145648

Weight distribution of [42,21,10] binary extended quadratic-residue (or QR) code.

1, 0, 0, 0, 0, 1722, 10619, 49815, 157563, 341530, 487326, 487326, 341530, 157563, 49815, 10619, 1722, 0, 0, 0, 0, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,6`
	COMMENTS	`Taken from the Tjhai-Tomlinson web site.`
	LINKS	`C. J. Tjhai and Martin Tomlinson, Weight Distributions of Quadratic Residue and Quadratic Double Circulant Codes over GF(2)`
	EXAMPLE	`The weight distribution is:` `i A_i` `0 1` `10 1722` `12 10619` `14 49815` `16 157563` `18 341530` `20 487326` `22 487326` `24 341530` `26 157563` `28 49815` `30 10619` `32 1722` `42 1`
	CROSSREFS	`Sequence in context: A205195 A200958 A048958 * A035867 A031814 A020427` `Adjacent sequences: A145645 A145646 A145647 * A145649 A145650 A145651`
	KEYWORD	`nonn,fini,full`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Mar 20 2009; example lines corrected Apr 11 2009`

Content is available under The OEIS End-User License Agreement .

Last modified February 15 18:22 EST 2012. Contains 205835 sequences.