The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A118895 Numbers n with property that both n and its digit reversal are perfect powers (i.e., in A001597). 2
 1, 4, 8, 9, 100, 121, 144, 169, 343, 400, 441, 484, 676, 900, 961, 1000, 1089, 1331, 8000, 9801, 10000, 10201, 10404, 10609, 12100, 12321, 12544, 12769, 14400, 14641, 14884, 16900, 40000, 40401, 40804, 44100, 44521, 44944, 48400, 48841, 67600 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS An alternate version of A110811, which doesn't include the terms with trailing zeros. LINKS EXAMPLE 100 is in the sequence because 100 and 001 = 1 are both perfect powers; 44521 and 12544 are both in the sequence because both are perfect powers, 221^2 and 112^2. CROSSREFS This sequence is a subset of both A115656 and A001597 and contains A110811. Cf. A118715. Sequence in context: A083807 A098128 A217700 * A327654 A110811 A226035 Adjacent sequences:  A118892 A118893 A118894 * A118896 A118897 A118898 KEYWORD base,easy,nonn AUTHOR Joshua Zucker, May 04 2006 EXTENSIONS Edited by N. J. A. Sloane, Oct 11 2008 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 10 15:15 EDT 2021. Contains 342845 sequences. (Running on oeis4.)