A036297 - OEIS

This site is supported by donations to The OEIS Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

A036297

Number of Hadamard matrices of order n.

1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 5, 0, 0, 0, 3, 0, 0, 0, 60, 0, 0, 0, 487, 0, 0, 0, 13710027, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,17`
	REFERENCES	`See A007299 for references.`
	LINKS	`Table of n, a(n) for n=0..35.` `See A007299 for links.` `Index entries for sequences related to Hadamard matrices` `Index entries for sequences related to maximal determinants`
	CROSSREFS	`A007299 is the main entry for this sequence. Cf. A003432.` `Sequence in context: A090750 A229656 A216722 * A087935 A243829 A318952` `Adjacent sequences: A036294 A036295 A036296 * A036298 A036299 A036300`
	KEYWORD	`hard,nonn,nice`
	AUTHOR	`N. J. A. Sloane.`
	EXTENSIONS	`a(32) from the H. Kharaghani and B. Tayfeh-Rezaie paper. - N. J. A. Sloane, Feb 11 2012`
	STATUS	`approved`

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 17 10:30 EST 2019. Contains 319218 sequences. (Running on oeis4.)