A131121 - OEIS

This site is supported by donations to The OEIS Foundation.

A131121

A131120(n+1)/n.

1, 1, 1, 1, 2, 2, 12, 12, 12, 12, 120, 120, 1440, 1440, 10080, 30240, 60480, 60480, 120960, 120960, 2419200, 7257600, 79833600, 79833600, 479001600, 479001600, 12454041600, 12454041600, 174356582400, 174356582400, 5230697472000 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,5`
	MAPLE	`A131120 := proc(n) option remember ; if n = 1 then 1; else (n-1)!/lcm(seq(A131120(i), i=1..n-1)) ; fi ; end: A131121 := proc(n) A131120(n+1)/n ; end: seq(A131121(n), n=1..40) ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 17 2007`
	CROSSREFS	`Cf. A131120.` `Sequence in context: A190295 A109767 A196061 * A055772 A025527 A092144` `Adjacent sequences: A131118 A131119 A131120 * A131122 A131123 A131124`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Jun 15 2007`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 17 2007`

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

Last modified February 17 16:49 EST 2012. Contains 206058 sequences.