%I #5 Oct 01 2013 17:57:27
%S 0,14,6300,19166,4766580,14316134,3485735820,10458256046,
%T 2541798719460,7625463267254,1853015893884540,5559051976620926,
%U 1350851442795085140,4052554603263162374,984770884591425188460,2954312671366461609806
%N Value of 3^x - 2^x - 5 for the solutions of 3^x - 2^x == 5 (mod 7).
%D Emil Grosswald, Topics From the Theory of Numbers. 1966 p 65 problem 23
%o (PARI) f(n) = for(x=1,n,y=3^x-2^x-5; if(y%7==0,print1(y" ")))
%Y Cf. A047243.
%K nonn
%O 1,2
%A _Cino Hilliard_, May 09 2003