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!)
A059785 a(n+1) = prevprime(a(n)^2). Largest prime prior to the square of previous prime. Initial value = 2. 6

%I #25 Oct 20 2017 22:06:15

%S 2,3,7,47,2207,4870843,23725111530599,562880917139361624513298747,

%T 316834926879648887020732217199607668221645859671769857

%N a(n+1) = prevprime(a(n)^2). Largest prime prior to the square of previous prime. Initial value = 2.

%C The next term is too large to show here - see the b-file.

%H Franklin T. Adams-Watters, <a href="/A059785/b059785.txt">Table of n, a(n) for n = 1..12</a>

%t NestList[NextPrime[#^2,-1]&,2,10] (* _Harvey P. Dale_, Jan 16 2016 *)

%Y Cf. A006992, A055496, A005384, A005385, A059784.

%K nonn

%O 1,1

%A _Labos Elemer_, Feb 22 2001

%E Offset and some values corrected by _Franklin T. Adams-Watters_, Jul 30 2009

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 9 07:31 EDT 2024. Contains 373229 sequences. (Running on oeis4.)