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!)
A186098 Primes removed by sieve generating A095117. 1

%I #38 Nov 03 2021 14:05:06

%S 2,7,23,31,41,53,61,137,157,193,233,241,257,283,293,311,397,439,479,

%T 499,523,557,593,647,883,1061,1129,1213,1303,1381,1429,1439,1543,1601,

%U 1847,1867,1877,1931,2011,2063,2129,2293,2333,2347,2393,2477,2551,2633,2677,2687

%N Primes removed by sieve generating A095117.

%C Primes not of the form k + primepi(k). [corrected by _Michel Marcus_, Oct 27 2021]

%H Bill McEachen, <a href="/A186098/b186098.txt">Table of n, a(n) for n = 1..10000</a>

%t Complement[Prime@ Range@ PrimePi[#], Array[PrimePi[#] + # &, #]] &[2700] (* _Michael De Vlieger_, Oct 27 2021 *)

%o (PARI) genit(maxx=50)={arr=List(); for(n=0,maxx,q=n+prime(n+1); if(ispseudoprime(q),listput(arr,q))); arr} \\ _Bill McEachen_, Oct 27 2021

%Y Complement of A076757 in the primes.

%Y Cf. A095117.

%K nonn

%O 1,1

%A _Carmine Suriano_, Mar 29 2011

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 April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)