id:A015085 - OEIS Search Results

Search: id:A015085

Displaying 1-1 of 1 results found.

page 1

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

+0
1

1, 1, 5, 89, 5885, 1518897, 1558435125, 6386478643785, 104648850228298925, 6858476391221411106209, 1797922152786660462507074405, 1885261615172756172119161342909753 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n) = sum_{i=1}^{n-1} q^{(i-1)} a(i) a(n-i).`
	CROSSREFS	`Adjacent sequences: A015082 A015083 A015084 this_sequence A015086 A015087 A015088` `Sequence in context: A067257 A134497 A028353 this_sequence A067258 A065197 A037297`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

page 1

Search completed in 0.002 seconds

Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

AT&T Labs Research