login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A057850 Primes p such that order of primeness A049076(p) is > 8. 12
5381, 52711, 648391, 2269733, 9737333, 17624813, 37139213, 50728129, 77557187, 131807699, 174440041, 259336153, 326851121, 368345293, 440817757, 563167303, 718064159, 751783477, 997525853, 1107276647, 1170710369, 1367161723 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Union of A058325-A058328, A093046 etc. - R. J. Mathar, Jul 07 2012

LINKS

Robert G. Wilson v, Table of n, a(n) for n = 1..11457

R. G. Batchko, A prime fractal and global quasi-self-similar structure in the distribution of prime-indexed primes, arXiv preprint arXiv:1405.2900, 2014

N. Fernandez, An order of primeness, F(p)

N. Fernandez, An order of primeness [cached copy, included with permission of the author]

FORMULA

a(n) = A049090(A049090(n)). - James G. Merickel, Feb 14 2010

a(n) = A000040(A057849(n)). - R. J. Mathar, Jul 07 2012

MATHEMATICA

Nest[ Prime, Range[35], 8] (* Robert G. Wilson v, Mar 15 2004 *)

PROG

(PARI) list(lim)=my(v=List(), q, r, s, t, u, vv, w); forprime(p=2, lim, if(isprime(q++) && isprime(r++) && isprime(s++) && isprime(t++) && isprime(u++) && isprime(vv++) && isprime(w++), listput(v, p))); Vec(v) \\ Charles R Greathouse IV, Feb 19 2017

CROSSREFS

Cf. A049076, A000040, A006450, A038580, A049090, A049203, A049202, A057849, A057851, A057847, A058332, A093047.

Sequence in context: A258074 A237295 A063408 * A058325 A224688 A126117

Adjacent sequences:  A057847 A057848 A057849 * A057851 A057852 A057853

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Nov 10 2000

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified March 28 22:27 EDT 2017. Contains 284249 sequences.