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 A046231 Numbers n such that n^3 is palindromic in base 4. 2
 0, 1, 5, 17, 65, 257, 1025, 4097, 16385, 65537, 262145, 1048577, 4194305, 16777217, 67108865, 268435457, 1073741825, 4294967297 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Base-2 and base 3 do not yield results below 10^8. Next term is >10000000000 - Sam Handler (sam_5_5_5_0(AT)yahoo.com), Aug 09 2006 LINKS P. De Geest, World!Of Numbers FORMULA It seems that for n>=2, a(n)=4^(n-1)+1. - Benoit Cloitre, Dec 07 2003 MATHEMATICA For[i = 1, i < 1000000, i++, tmp = IntegerDigits[i^3, 4]; If[tmp == Reverse[tmp], Print[i]] ]; - Sam Handler (sam_5_5_5_0(AT)yahoo.com), Aug 09 2006 CROSSREFS Cf. A046232. Cf. A052539. [From R. J. Mathar, Oct 13 2008] Sequence in context: A273535 A149672 A149673 * A092896 A149674 A149675 Adjacent sequences:  A046228 A046229 A046230 * A046232 A046233 A046234 KEYWORD nonn,more,base AUTHOR Patrick De Geest, May 15 1998 EXTENSIONS More terms from Sam Handler (sam_5_5_5_0(AT)yahoo.com), Aug 09 2006, corrected Nov 01 2006 STATUS approved

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Last modified December 16 00:55 EST 2018. Contains 318157 sequences. (Running on oeis4.)