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 A029989 Squares which are palindromes in base 5. 13
 0, 1, 4, 36, 676, 961, 4356, 15876, 24336, 391876, 423801, 571536, 646416, 9771876, 10732176, 14107536, 81974916, 244171876, 248094001, 264908176, 339812356, 351787536, 1061326084, 1167042244, 2181263616, 6103671876 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS P. De Geest, Palindromic Squares G. J. Simmons, On palindromic squares of non-palindromic numbers, J. Rec. Math., 5 (No. 1, 1972), 11-19. [Annotated scanned copy] MATHEMATICA pal5Q[n_]:=Module[{idn5=IntegerDigits[n, 5]}, idn5==Reverse[idn5]]; Select[ Range[0, 80000]^2, pal5Q] (* Harvey P. Dale, May 05 2012 *) CROSSREFS Cf. A002778, A003166, A263611, A263612, A029988. Sequence in context: A268470 A214347 A208732 * A163887 A156630 A289545 Adjacent sequences:  A029986 A029987 A029988 * A029990 A029991 A029992 KEYWORD nonn,base AUTHOR STATUS approved

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Last modified December 19 09:21 EST 2018. Contains 318246 sequences. (Running on oeis4.)