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 A104951 Primes from merging of 8 successive digits in decimal expansion of the Champernowne Constant. 1

%I

%S 23456789,56789101,11213141,14151617,41516171,20212223,82930313,

%T 13233343,34353637,58596061,64656667,66768697,76869707,17273747,

%U 47576777,88990919,10911011,11112113,21131141,31141151,21231241

%N Primes from merging of 8 successive digits in decimal expansion of the Champernowne Constant.

%H Vincenzo Librandi, <a href="/A104951/b104951.txt">Table of n, a(n) for n = 1..1000</a>

%H The first <a href="http://www.worldwideschool.org/library/books/sci/math/MiscellaneousMathematicalConstants/chap12.html">2,800 digits of the Champernowne Constant</a> as calculated at WorldWideSchool.org.

%t Select[Select[FromDigits/@Partition[Flatten[IntegerDigits/@Range[500]], 8, 1], PrimeQ], IntegerLength[#] == 8&] (* _Vincenzo Librandi_, Apr 24 2013 *)

%Y Cf. A033307.

%K nonn,base

%O 1,1

%A Andrew G. West (WestA(AT)wlu.edu), Mar 29 2005

%E Changed offset from 0 to 1 by _Vincenzo Librandi_, Apr 24 2013

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Last modified March 25 03:37 EDT 2023. Contains 361511 sequences. (Running on oeis4.)