id:A015091 - OEIS Search Results

Search: id:A015091

Displaying 1-1 of 1 results found.

page 1

q-Catalan numbers (recurrence version) for q=7.

+0
2

1, 1, 8, 407, 140456, 337520898, 5673390747984, 667480099386451779, 549699898523248769128232, 3168911624115201777713785471406, 127877020635106970108300418456422667248 (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: A159515 A012825 A165036 this_sequence A008274 A038781 A092868` `Adjacent sequences: A015088 A015089 A015090 this_sequence A015092 A015093 A015094`
	KEYWORD	`nonn`
	AUTHOR	`Olivier Gerard (olivier.gerard(AT)gmail.com)`

page 1

Search completed in 0.002 seconds

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research