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 A084010 a(n) = (2^n concatenated with Reverse(2^n)) divided by 11. 1
 1, 2, 4, 8, 151, 293, 586, 11711, 23332, 46565, 931291, 1862582, 3724264, 7447538, 148949851, 297898793, 595787596, 11915660921, 23831312842, 47662625675, 953251523491, 1906502047082, 3813004003174, 7626008006258, 152520151025251 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..24. EXAMPLE a(7) = 128821/11 = 11711. MATHEMATICA crd[n_]:=Module[{idn=IntegerDigits[2^n]}, FromDigits[Join[idn, Reverse[ idn]]/11]]; Array[crd, 30, 0] (* Harvey P. Dale, Feb 28 2013 *) CROSSREFS Cf. A084008, A084009. Sequence in context: A060815 A200758 A110746 * A203630 A265595 A133036 Adjacent sequences: A084007 A084008 A084009 * A084011 A084012 A084013 KEYWORD base,nonn AUTHOR Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 23 2003 EXTENSIONS More terms from Franklin T. Adams-Watters, Apr 28 2006 STATUS approved

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Last modified September 10 21:37 EDT 2024. Contains 375795 sequences. (Running on oeis4.)