A015099 - OEIS

This site is supported by donations to The OEIS Foundation.

A015099

q-Catalan numbers (recurrence version) for q=-4.

1, 1, -3, -55, 3429, 885137, -904638963, -3707218743911, 60731665539301365, 3980231929565571675617, -1043385959026442521712292579, -1094071562179856506263860787078039 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	FORMULA	`a(n) = sum_{i=1}^{n-1} q^{(i-1)} a(i) a(n-i).`
	CROSSREFS	`Sequence in context: A156379 A119192 A103134 * A002818 A119190 A172748` `Adjacent sequences: A015096 A015097 A015098 * A015100 A015101 A015102`
	KEYWORD	`sign`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

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

Last modified February 13 20:26 EST 2012. Contains 205553 sequences.