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%I #4 Mar 31 2012 20:01:51
%S 5,7,13,47,502829,95622386615329600236050591,
%T 31282850202880064644204601069,463689046302626373360766753609741,
%U 15491551101739718820967497643203613
%N Prime differences between 2^n and 3^m when they are nearly equal for n and m to 200.
%C The first array "c" can be used to extend A102872. d = Delete[Union[Table[If[PrimeQ[c[[n]]], c[[n]], 0], {n, 1, Length[c]}]], 1] finds the primes in this line between 2^n and 3^m.
%F a(q) = If 2^n and 3^m are such that 2^n>3^n and Floor[2^n/3^m]<2 and when Abs[2^n-3^m] if prime, then a[q]=Abs[2^n-3^m]
%t c = Delete[Union[Flatten[Table[Table[If [ (2^n > 3^m) && Floor[2^n/3^m] < 2, Abs[2^n - 3^m], 0], {m, 1, n}], {n, 1, 200}], 1]], 1] d = Delete[Union[Table[If[PrimeQ[c[[n]]], c[[n]], 0], {n, 1, Length[c]}]], 1]
%K nonn
%O 1,1
%A _Roger L. Bagula_, Mar 01 2005
%E Is this well-defined? "Up to 200" bothers me. - _N. J. A. Sloane_.
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