id:A088014 - OEIS Search Results

Search: id:A088014

Displaying 1-1 of 1 results found.

page 1

E.g.f.: cosh(sqrt(2)x)(1+exp(x)).

+0
3

2, 1, 5, 7, 21, 41, 107, 239, 593, 1393, 3395, 8119, 19665, 47321, 114371, 275807, 666113, 1607521, 3881411, 9369319, 22620561, 54608393, 131838371, 318281039, 768402497, 1855077841, 4478562275, 10812186007, 26102942481, 63018038201 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`G.f.: (2-3x-3x^2+2x^2)/(1-2x-3x^2+4x^3+2x^4); E.g.f. : cosh(sqrt(2)x)(1+exp(x)); a(n)=((sqrt(2))^n+(-sqrt(2))^n+(1+sqrt(2))^n+(1-sqrt(2))^n)/2.`
	CROSSREFS	`Cf. A052950.` `Cf. A002315.` `Sequence in context: A093545 A005297 A014551 this_sequence A141507 A059274 A082635` `Adjacent sequences: A088011 A088012 A088013 this_sequence A088015 A088016 A088017`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Sep 18 2003`

page 1

Search completed in 0.002 seconds

Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research