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 A007704 a(n+2) = (a(n) - 1)a(n+1) + 1. (Formerly M0594) 1
 2, 3, 4, 9, 28, 225, 6076, 1361025, 8268226876, 11253255215681025, 93044467205527772332546876, 1047053135870867396062743192203958743681025 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS J. L. Davison, Jeffrey Shallit, Continued Fractions for Some Alternating Series, Monatsh. Math., 111 (1991), 119-126. FORMULA a(n) = A006277(n) + 1. - R. J. Mathar, Apr 27 2007 MAPLE A007704 := proc(n) options remember; if n <= 2 then RETURN(n+1) else (A007704(n-2)-1)*A007704(n-1)+1; fi; end; CROSSREFS Sequence in context: A001144 A121253 A014118 * A059972 A245930 A086432 Adjacent sequences:  A007701 A007702 A007703 * A007705 A007706 A007707 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified January 18 16:40 EST 2019. Contains 319271 sequences. (Running on oeis4.)