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A104951 Primes from merging of 8 successive digits in decimal expansion of the Champernowne Constant. 1
23456789, 56789101, 11213141, 14151617, 41516171, 20212223, 82930313, 13233343, 34353637, 58596061, 64656667, 66768697, 76869707, 17273747, 47576777, 88990919, 10911011, 11112113, 21131141, 31141151, 21231241 (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[500]], 8, 1], PrimeQ], IntegerLength[#] == 8&] (* Vincenzo Librandi, Apr 24 2013 *)

CROSSREFS

Cf. A033307.

Sequence in context: A097617 A160402 A243364 * A235971 A187551 A204152

Adjacent sequences: A104948 A104949 A104950 * A104952 A104953 A104954

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

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Last modified February 3 01:46 EST 2023. Contains 360024 sequences. (Running on oeis4.)