id:A083008 - OEIS Search Results

Search: id:A083008

Displaying 1-1 of 1 results found.

page 1

a(n)=sum(k=0,n-1,4^k*B(k)*C(n,k)) where B(k) is the k-th Bernoulli number and C(n,k)=binomial(n,k).

+0
2

0, 1, -3, 3, 9, -25, -99, 427, 2193, -12465, -79515, 555731, 4247577, -35135945, -313193811, 2990414715, 30461046561, -329655706465, -3777604994187, 45692713833379, 581778811909545, -7777794952988025, -108933009112011843, 1595024111042171723, 24370176181315498929 (list; graph; listen)

	OFFSET	`1,3`
	PROGRAM	`(PARI) a(n)=sum(k=0, n-1, 4^kbinomial(n, k)bernfrac(k))`
	CROSSREFS	`Cf. A001469.` `Bisection is A009843.` `Sequence in context: A099094 A007683 A059728 this_sequence A117976 A010098 A029857` `Adjacent sequences: A083005 A083006 A083007 this_sequence A083009 A083010 A083011`
	KEYWORD	`sign`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 31 2003`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research