OFFSET
1,1
COMMENTS
Number and its reverse must have the same number of digits.
Number squared cannot be a palindrome. - Harvey P. Dale, Mar 12 2017
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..1169 (terms < 10^12, first 90 terms from Harvey P. Dale)
EXAMPLE
35143^2 = 96721*12769.
MATHEMATICA
nir[n_]:=If[PalindromeQ[n]||Divisible[n, 10], 0, n IntegerReverse[n]]; Sqrt[#] &/@ Select[Array[nir, 500000], #!=0&&IntegerQ[Sqrt[#]]&]//Union (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Mar 12 2017 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Carmine Suriano, Feb 17 2012
STATUS
approved