%I M1453 #15 Dec 26 2016 15:20:53
%S 1,2,5,14,36,98,273,768,2197,6360,18584,54780,162672,486154,1461197,
%T 4413988,13393855,40807290,124783669,382842018,1178140280,3635626680,
%U 11247841224,34880346840,108402132544,337576497920,1053229358252,3291813720292
%N Number of acyclic secondary alcohols with n carbon atoms.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H R. C. Read, <a href="/A000598/a000598.pdf">The Enumeration of Acyclic Chemical Compounds</a>, pp. 25-61 of A. T. Balaban, ed., Chemical Applications of Graph Theory, Ac. Press, 1976. [Annotated scanned copy] See p. 44.
%F G.f. x*(B(x)-1)^2 where B(x) is the g.f. for A000625. - _Sean A. Irvine_, Nov 12 2016
%e G.f. = x^3 + 2*x^4 + 5*x^5 + 14*x^6 + 36*x^7 + 98*x^8 + 273*x^9 + ...
%Y Cf. A000625.
%K nonn
%O 3,2
%A _N. J. A. Sloane_.
%E More terms from _Sean A. Irvine_, Nov 12 2016