id:A128554 - OEIS Search Results

Search: id:A128554

Displaying 1-1 of 1 results found.

page 1

Column 4 of triangle A128545; a(n) is the coefficient of q^(4n+16) in the central q-binomial coefficient [2n+8,n+4].

+0
4

1, 7, 39, 155, 526, 1555, 4192, 10465, 24620, 55038, 117966, 243723, 487842, 949446, 1802547, 3346632, 6089910, 10881277, 19121293, 33091141, 56466398, 95105255, 158256685, 260386761, 423932473, 683409993, 1091521679, 1728156294 (list; graph; listen)

	OFFSET	`0,2`
	PROGRAM	`(PARI) a(n)=polcoeff(prod(j=n+5, 2n+8, 1-q^j)/prod(j=1, n+4, 1-q^j), 4n+16, q)`
	CROSSREFS	`Cf. A128545; A128552, A128553.` `Sequence in context: A027241 A056197 A027482 this_sequence A032207 A004057 A081898` `Adjacent sequences: A128551 A128552 A128553 this_sequence A128555 A128556 A128557`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Mar 10 2007`

page 1

Search completed in 0.002 seconds

Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

AT&T Labs Research