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A086040 Prime p concatenated with next 4 primes is also prime. 5
7, 47, 53, 67, 97, 101, 149, 401, 431, 479, 487, 757, 827, 887 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

a(1)=7 because 7, 11, 13, 17 and 19 concatenated together yield 711131719 which is prime.

CROSSREFS

Cf. A030459, A030468, A030472, A086041.

Sequence in context: A036944 A068640 A089725 * A009241 A263920 A124837

Adjacent sequences:  A086037 A086038 A086039 * A086041 A086042 A086043

KEYWORD

base,nonn

AUTHOR

Chuck Seggelin (barkeep(AT)plastereddragon.com), Jul 07 2003

EXTENSIONS

Offset corrected by Arkadiusz Wesolowski, May 10 2012

STATUS

approved

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Last modified July 30 18:16 EDT 2021. Contains 346359 sequences. (Running on oeis4.)