id:A063747 - OEIS Search Results

Search: id:A063747

Displaying 1-1 of 1 results found.

page 1

Sign of n-th coefficient of power series for 1/Gamma(1-x) where Gamma is the Gamma function.

+0
1

1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 1, 1, 1, 1, 1, -1, -1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, 1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`1/Gamma(1-x) = 1 - gammax - 0.6558...x^2 + 0.042...x^3 + 0.1665...x^4 + 0.0421...x^5 - 0.0096..x^6 +.... hence sequence begins 1,-1,-1,1,1,1,-1,`
	PROGRAM	`(PARI) a(n)=sign(polcoeff(1/(gamma(1-x)+O(x^(n+1))), n))`
	CROSSREFS	`Sequence in context: A057077 A162511 A157895 this_sequence A077008 A158387 A087960` `Adjacent sequences: A063744 A063745 A063746 this_sequence A063748 A063749 A063750`
	KEYWORD	`sign`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 16 2004`

page 1

Search completed in 0.002 seconds

Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research