OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
The first 2,800 digits of the Champernowne Constant as calculated at WorldWideSchool.org.
MATHEMATICA
Select[Select[FromDigits/@Partition[Flatten[IntegerDigits/@Range[300]], 7, 1], PrimeQ], IntegerLength[#] == 7&] (* Vincenzo Librandi, Apr 24 2013 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Andrew G. West (WestA(AT)wlu.edu), Mar 29 2005
EXTENSIONS
Changed offset from 0 to 1 by Vincenzo Librandi, Apr 24 2013
STATUS
approved