%I A048608
%S A048608 1,4,48,96,3840,30720,13440,2064384,92897280,594542592,130799370240,
%T A048608 1121137459200,40809403514880,816188070297600,48971284217856000,
%U A048608 5484783832399872000,62160883433865216000,1918107260244983808000
%N A048608 Denominators of coefficients in function a(x) such that a(a(x)) = ln(1+x).
%C A048608 Recursion exists for coefficients, but is too complicated to use without 
               a computer algebra system
%D A048608 W. C. Yang, Polynomials are essentially integer partitions, preprint, 
               1999
%D A048608 W. C. Yang, Composition equations, preprint, 1999
%D A048608 W. C. Yang, Derivatives are essentially integer partitions, Discrete 
               Math., 222 (2000), 235-245.
%e A048608 x - x^2/4 + x^3 * 5/48 + ...
%Y A048608 Cf. A048607.
%Y A048608 Sequence in context: A052105 A010293 A157818 this_sequence A162673 A002287 
               A127211
%Y A048608 Adjacent sequences: A048605 A048606 A048607 this_sequence A048609 A048610 
               A048611
%K A048608 frac,nonn,nice
%O A048608 0,2
%A A048608 Winston C. Yang (yang(AT)math.wisc.edu)