0,1

Conjectures: (1) Sequence is infinite. (2) For every n there are infinitely many members of the form k^n.

Harvey P. Dale, Table of n, a(n) for n = 0..470(* No further terms through 32 million *)

Select[Range[120000], GCD@@FactorInteger[#][[All, 2]]>1 && PrimeQ[ IntegerReverse[ #]]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, May 03 2018 *)

Sequence in context: A007824 A235056 A115686 * A272697 A232510 A282832

Adjacent sequences: A088109 A088110 A088111 * A088113 A088114 A088115

base,nonn

Amarnath Murthy, Sep 25 2003

Corrected and extended by Ray Chandler, Oct 14 2003

approved