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!)
A186098 Primes removed by sieve generating A095117. 1
2, 7, 23, 31, 41, 53, 61, 137, 157, 193, 233, 241, 257, 283, 293, 311, 397, 439, 479, 499, 523, 557, 593, 647, 883, 1061, 1129, 1213, 1303, 1381, 1429, 1439, 1543, 1601, 1847, 1867, 1877, 1931, 2011, 2063, 2129, 2293, 2333, 2347, 2393, 2477, 2551, 2633, 2677, 2687 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Primes not of the form k + primepi(k). [corrected by Michel Marcus, Oct 27 2021]
LINKS
MATHEMATICA
Complement[Prime@ Range@ PrimePi[#], Array[PrimePi[#] + # &, #]] &[2700] (* Michael De Vlieger, Oct 27 2021 *)
PROG
(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
CROSSREFS
Complement of A076757 in the primes.
Cf. A095117.
Sequence in context: A180537 A042145 A309580 * A040098 A045315 A072935
KEYWORD
nonn
AUTHOR
Carmine Suriano, Mar 29 2011
STATUS
approved

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 May 13 18:49 EDT 2024. Contains 372522 sequences. (Running on oeis4.)