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%I #15 Aug 31 2021 11:32:25
%S 0,1,4,36,676,961,4356,15876,24336,391876,423801,571536,646416,
%T 9771876,10732176,14107536,81974916,244171876,248094001,264908176,
%U 339812356,351787536,1061326084,1167042244,2181263616,6103671876
%N Squares which are palindromes in base 5.
%H Chai Wah Wu, <a href="/A029989/b029989.txt">Table of n, a(n) for n = 1..147</a>
%H Patrick De Geest, <a href="http://www.worldofnumbers.com/square.htm">Palindromic Squares</a>
%H G. J. Simmons, <a href="/A002778/a002778.pdf">On palindromic squares of non-palindromic numbers</a>, J. Rec. Math., 5 (No. 1, 1972), 11-19. [Annotated scanned copy]
%t pal5Q[n_]:=Module[{idn5=IntegerDigits[n,5]},idn5==Reverse[idn5]]; Select[ Range[0,80000]^2,pal5Q] (* _Harvey P. Dale_, May 05 2012 *)
%Y Cf. A002778, A003166, A263611, A263612, A029988.
%K nonn,base
%O 1,3
%A _Patrick De Geest_
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