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Numbers n with property that both n and its digit reversal are perfect powers (i.e., in A001597).
2

%I #7 Jul 22 2017 23:47:08

%S 1,4,8,9,100,121,144,169,343,400,441,484,676,900,961,1000,1089,1331,

%T 8000,9801,10000,10201,10404,10609,12100,12321,12544,12769,14400,

%U 14641,14884,16900,40000,40401,40804,44100,44521,44944,48400,48841,67600

%N Numbers n with property that both n and its digit reversal are perfect powers (i.e., in A001597).

%C An alternate version of A110811, which doesn't include the terms with trailing zeros.

%e 100 is in the sequence because 100 and 001 = 1 are both perfect powers;

%e 44521 and 12544 are both in the sequence because both are perfect powers, 221^2 and 112^2.

%Y This sequence is a subset of both A115656 and A001597 and contains A110811.

%Y Cf. A118715.

%K base,easy,nonn

%O 1,2

%A _Joshua Zucker_, May 04 2006

%E Edited by _N. J. A. Sloane_, Oct 11 2008