%I #5 Mar 14 2015 00:04:51
%S 1,8,47,18,14,89,10,9,48,16,23,17,168,268,15,661,50,380,84,116,360,
%T 245,29,144,345,227,785,261,148,235,691,658,638,40,1023,674,1529,210,
%U 19,81,181,428,170,1130,2322,406,600,373,958,217
%N a(n) is the smallest number x such that A085298[x]=n, or 0 if no such number exists.
%e a(13) = 168 means that 13 is the smallest exponent such that reversed[p(168)^13] = reversed[997^13] = 776831144302925059735912605306533496169
%e is prime if read in this direction and 13th prime-power if read backwards.
%Y Cf. A085298, A057708, A058993, A056994, A059695, A003459, A007500, A055387, A061461, A068652.
%K base,nonn
%O 1,2
%A _Labos Elemer_, Jun 24 2003