

A304652


Digits of the CopelandErdős constant taken in groups of five digits.


0



23571, 35711, 57111, 71113, 11131, 11317, 13171, 31719, 17192, 71923, 19232, 92329, 23293, 32931, 29313, 93137, 31374, 13741, 37414, 74143, 41434, 14347, 43475, 34753, 47535, 75359, 53596, 35961, 59616, 96167, 61677, 16771, 67717, 77173, 71737, 17379, 73798, 37983, 79838, 98389
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OFFSET

1,1


COMMENTS

This sequence is presented by the Foo Bar Challenge, a recruitment tool for Google, as the challenge to renumber some entities with 5digit ID numbers taken from the first 10004 places of the CopelandErdős constant.
The ID numbers are to be left zeropadded as needed to ensure they all consist of five digits. Of course here in the OEIS leading zeros will just be dropped.
The Foo Bar Challenge statement of the problem says nothing of the fact that there are duplicates among these well before 10000.


LINKS

Table of n, a(n) for n=1..40.


MATHEMATICA

numCopelandErdos = Flatten[IntegerDigits[Prime[Range[1000]]]]; Table[FromDigits[numCopelandErdos[[n ;; (n + 4)]]], {n, Length[numCopelandErdos]  4}]


CROSSREFS

Cf. A033308, A068670.
Sequence in context: A227483 A237508 A177827 * A230361 A069334 A118061
Adjacent sequences: A304649 A304650 A304651 * A304653 A304654 A304655


KEYWORD

nonn,base


AUTHOR

Alonso del Arte, May 16 2018


STATUS

approved



