OFFSET
0,1
FORMULA
G.f.: (4-9x)/(1-2x). a(n+1)= -A000079(n). R. J. Mathar, Feb 25 2009
E.g.f.: 5 + x/(G(0)+1), where G(k) = 2*k - 1 - x/(1 + x/G(k+1) ); (continued fraction ). - Sergei N. Gladkovskii, Dec 27 2013
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Paul Curtz, Jan 12 2009
EXTENSIONS
Edited by N. J. A. Sloane, Jan 14 2009
STATUS
approved