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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 October 25 09:15 EDT 2021. Contains 348239 sequences. (Running on oeis4.)