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 A110811 Perfect powers not a multiple of 10 whose digit reversal is also a perfect power (not necessarily with the same exponent, but with exponent > 1). 2
 1, 4, 8, 9, 121, 144, 169, 343, 441, 484, 676, 961, 1089, 1331, 9801, 10201, 10404, 10609, 12321, 12544, 12769, 14641, 14884, 40401, 40804, 44521, 44944, 48841, 69696, 90601, 94249, 96721, 698896, 1002001, 1004004, 1006009, 1022121, 1024144 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS All palindromic perfect powers are trivial members, but there are infinitely many nontrivial members. LINKS Chai Wah Wu, Table of n, a(n) for n = 1..867 EXAMPLE 12^2 =144, digit reversal of 144 is 441= 21^2. 12769=113^2, reversal(12769) = 96721 = 311^2. MATHEMATICA Join[{1}, Select[Range[11 10^5], Mod[#, 10]!=0&&GCD@@FactorInteger[#][[All, 2]]>1&&GCD@@FactorInteger[IntegerReverse[#]][[All, 2]]>1&]] (* Harvey P. Dale, Jun 01 2018 *) CROSSREFS This is a subset of A115656 and also a subset of A001597. See also A118895 to include terms with trailing zeros. Sequence in context: A098128 A217700 A118895 * A226035 A128827 A075786 Adjacent sequences:  A110808 A110809 A110810 * A110812 A110813 A110814 KEYWORD base,easy,nonn AUTHOR Amarnath Murthy, Aug 15 2005 EXTENSIONS Corrected and extended by Joshua Zucker, May 04 2006 Description and offset edited by Chai Wah Wu, Jun 06 2016 STATUS approved

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Last modified July 18 07:10 EDT 2019. Contains 325134 sequences. (Running on oeis4.)