id:A110467 - OEIS Search Results

Search: id:A110467

Displaying 1-1 of 1 results found.

page 1

Convolution of 4^n*n! and n!.

+0
1

1, 5, 38, 430, 6640, 130200, 3088560, 85828080, 2731899456, 97956720000, 3906077932800, 171436911264000, 8211994618982400, 426284974571904000, 23836815193556736000, 1428394963614554880000, 91316330157374106624000 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`E.g.f.: ln((1-x)(1-4x))/(4x-5); a(n)=n!sum{k=0..n, 4^k/binomial(n, k)}; a(n)=sum{k=0..n, k!4^k*(n-k)!}.`
	CROSSREFS	`Sequence in context: A158266 A098937 A069471 this_sequence A095230 A153267 A064445` `Adjacent sequences: A110464 A110465 A110466 this_sequence A110468 A110469 A110470`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 21 2005`

page 1

Search completed in 0.002 seconds

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research