A086262 - OEIS

A086262

Number of n X n conference matrices (including both symmetric and antisymmetric).

1, 4, 0, 16, 0, 384, 0, 30720, 0, 2580480, 0, 1486356480, 0 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`a(n) = A086260(n) + A086261(n) for n>1.`
	LINKS	`Table of n, a(n) for n=1..13.` `Eric Weisstein's World of Mathematics, C-Matrix`
	CROSSREFS	`Cf. A086260, A086261.` `Sequence in context: A199572 A003195 A190759 * A167361 A321610 A167314` `Adjacent sequences: A086259 A086260 A086261 * A086263 A086264 A086265`
	KEYWORD	`nonn,more`
	AUTHOR	`Eric W. Weisstein, Jul 14 2003`
	EXTENSIONS	`a(9)-a(13) from Martin Ehrenstein, Oct 08 2021`
	STATUS	`approved`

Last modified August 13 18:00 EDT 2022. Contains 356107 sequences. (Running on oeis4.)