id:A024420 - OEIS Search Results

Search: id:A024420

Displaying 1-1 of 1 results found.

page 1

n!(1/binomial(n,0) - 1/binomial(n,1) + ... + d/binomial(n,[ n/2 ])), where d = (-1)^[ n/2 ].

+0
1

1, 1, 1, 4, 22, 108, 612, 4416, 36576, 331200, 3319200, 36806400, 445046400, 5813579520, 81716947200, 1230656716800, 19761225523200, 336973967769600 (list; graph; listen)

	OFFSET	`0,4`
	CROSSREFS	`Sequence in context: A017970 A099013 A001436 this_sequence A108840 A007994 A006651` `Adjacent sequences: A024417 A024418 A024419 this_sequence A024421 A024422 A024423`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research