id:A015106 - OEIS Search Results

Search: id:A015106

Displaying 1-1 of 1 results found.

page 1

q-Catalan numbers (recurrence version) for q=-9.

+0
1

1, 1, -8, -665, 483544, 3173511682, -187386353065808, -99585165693268026701, 476312561203989614441440600, 20503694883570579788445502041773422, -7943551457092331370323478258038812629918704 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n) = sum_{i=1}^{n-1} q^{(i-1)} a(i) a(n-i).`
	CROSSREFS	`Sequence in context: A027877 A129927 A159621 this_sequence A099126 A101180 A128875` `Adjacent sequences: A015103 A015104 A015105 this_sequence A015107 A015108 A015109`
	KEYWORD	`sign`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

page 1

Search completed in 0.002 seconds

Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

AT&T Labs Research