The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A101219 Primes that are a concatenation of 3, 5 and a prime. 6

%I #8 Jan 23 2019 16:09:51

%S 353,3511,3517,3529,3541,3547,3559,3571,3583,35107,35149,35227,35251,

%T 35257,35281,35311,35317,35353,35401,35419,35449,35461,35491,35509,

%U 35521,35569,35593,35617,35677,35797,35809,35839,35863,35911,35977

%N Primes that are a concatenation of 3, 5 and a prime.

%H Harvey P. Dale, <a href="/A101219/b101219.txt">Table of n, a(n) for n = 1..1000</a>

%H Peter Alfeld <a href="http://www.math.utah.edu/~alfeld/math/p10000.html">The 10,000 smallest prime numbers</a>.

%e 3511 is a prime concatenated from the primes 3, 5 and 11.

%t Select[35*10^IntegerLength[#]+#&/@Prime[Range[200]],PrimeQ] (* _Harvey P. Dale_, Jan 23 2019 *)

%Y Cf. A100607, A101218, A101249, A101250, A101251, A101252.

%K nonn,base,easy

%O 1,1

%A _Parthasarathy Nambi_, Dec 14 2004

%E Extended by _Ray Chandler_, Dec 22, 2004

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 7 18:53 EDT 2024. Contains 373206 sequences. (Running on oeis4.)