A165970 - OEIS

This site is supported by donations to The OEIS Foundation.

A165970

sqrt( superfactorial(4n) / factorial(2n) )

1, 12, 14515200, 420505587390873600000, 6848282921689337839624757371207680000000000, 592617982969061328644755583860005865281724398591341934673920000000000000000 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`a(n) = sqrt( A000178(4n) / A000142(2n) ) = sqrt(0! * 1! * ... * (2n-1)! * (2n+1)! * (2n+2)! * ... * (4n)!)`
	CROSSREFS	`Sequence in context: A145745 A175906 A144546 * A081357 A127708 A094896` `Adjacent sequences: A165967 A165968 A165969 * A165971 A165972 A165973`
	KEYWORD	`nonn`
	AUTHOR	`Max Alekseyev (maxale(AT)gmail.com), Oct 02 2009`

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

Last modified February 14 13:08 EST 2012. Contains 205623 sequences.