%I #3 Mar 30 2012 17:22:26
%S 3,24,312,936,21528,150696,1657656,31495464,1354304952,2708609904,
%T 143556324912,4163133422448,1387711140816,23591089393872,
%U 1722149525752656,574049841917552,47646136879156816,4331466989014256
%N Denominator of the generalized harmonic number H(n,5,3).
%C The numerators are in A075141. See A075135 for more details.
%t a=5; b=3; maxN=20; s=0; Denominator[Table[s+=1/(a n + b), {n, 0, maxN-1}]]
%Y Cf. A075135, A075141.
%K easy,frac,nonn
%O 1,1
%A _T. D. Noe_, Sep 04 2002