The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A104952 Primes from merging of 9 successive digits in decimal expansion of the Champernowne Constant. 2
 728293031, 282930313, 343536373, 940414243, 727374757, 778798081, 586878889, 596979899, 798991001, 899100101, 810911011, 911011111, 720820921, 736836937, 937037137, 939039139, 850951051, 951051151, 756856957, 973073173, 876977077 (list; graph; refs; listen; history; text; internal format)
 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[600]], 9, 1], PrimeQ], IntegerLength[#] == 9 &] (*Vincenzo Librandi, Apr 24 2013 Select[FromDigits/@Partition[RealDigits[ChampernowneNumber[], 10, 3000][[1]], 9, 1], IntegerLength[#]==9&&PrimeQ[#]&] (* Harvey P. Dale, May 02 2019 *) CROSSREFS Cf. A033307. Sequence in context: A086041 A244186 A035518 * A015370 A068725 A104932 Adjacent sequences: A104949 A104950 A104951 * A104953 A104954 A104955 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 31 12:12 EDT 2023. Contains 363066 sequences. (Running on oeis4.)