A099727 Concatenations of six consecutive primes forming a prime.
113127131137139149, 569571577587593599, 727733739743751757, 733739743751757761, 739743751757761769, 102110311033103910491051, 105110611063106910871091, 110911171123112911511153, 118111871193120112131217, 138113991409142314271429
Offset: 1
Examples
The prime 113127131137139149 is a concatenation of the consecutive primes 113, 127, 131, 137, 139 and 149.
Links
- K. D. Bajpai, Table of n, a(n) for n = 1..1470
Programs
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Maple
select(isprime, [seq(parse(cat([seq(ithprime(i), i=n+0..n+5)][])), n=1..500)])[]; # K. D. Bajpai, Mar 24 2014
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Mathematica
Select[FromDigits[Flatten[IntegerDigits/@#]]&/@Partition[Prime[Range[ 300]],6,1],PrimeQ] (* Harvey P. Dale, Apr 30 2020 *)