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%I #7 Jun 20 2017 17:32:47
%S 1,1,3,4,30,12,84,4,15,10,22,3,455,105,1,48,510,36,2660,168,660,1320,
%T 184,720,27300,6552,216,16,3480,240,114576,176,5355,3570,126,6,959595,
%U 10374,630,840
%N Denominators of the z-sequence for the Sheffer matrix S2*P = A048993*A007318 = A049020.
%C The numerators are in A288867 where details and examples are given.
%F E.g.f. of r(n) = A288867(n)/a(n), n >= 0: (exp(x)-1)/(log(1+x)*exp(x)).
%F a(n) = denominator(r(n)) (r(n) in lowest terms).
%Y Cf. A288867.
%K nonn,frac,easy
%O 0,3
%A _Wolfdieter Lang_, Jun 20 2017