0,3

J. L. Davison, J. O. Shallit, Continued Fractions for Some Alternating Series, Monatsh. Math., 111 (1991), 119-126.

S. R. Finch, Mathematical Constants, Cambridge, 2003, Section 6.7.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Sum n=0..inf 1/a(n) = 3 - Gerald McGarvey (Gerald.McGarvey(AT)comcast.net), Jul 20 2004

A006277 := proc(n) options remember; if n <= 1 then RETURN(1) else A006277(n-2)*(A006277(n-1)+1); fi; end;

Sequence in context: A093858 A080568 A091339 this_sequence A004106 A012886 A078918

Adjacent sequences: A006274 A006275 A006276 this_sequence A006278 A006279 A006280

nonn

N. J. A. Sloane (njas(AT)research.att.com), Jeffrey Shallit