A061721 - OEIS

This site is supported by donations to The OEIS Foundation.

A061721

Number of zeros in the character table of the dihedral group with 2n elements.

0, 0, 1, 3, 2, 4, 3, 10, 4, 8, 5, 15, 6, 12, 7, 26 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	COMMENTS	`For odd n a(n) = (n-1)/2`
	EXAMPLE	`a(3) = 1 because the group is isomorphic to S_3 and the table is : 1, 1, 1 1,-1, 1 2, 0,-1`
	CROSSREFS	`A060762.` `Sequence in context: A175508 A065375 A070961 * A066257 A085591 A062964` `Adjacent sequences: A061718 A061719 A061720 * A061722 A061723 A061724`
	KEYWORD	`nonn`
	AUTHOR	`Ahmed Fares (ahmedfares(AT)my-deja.com), Jun 20 2001`

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

Last modified February 14 11:13 EST 2012. Contains 205618 sequences.