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.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A259014 Numbers n congruent to 5 mod 6 such that every number of the form (n*4^k + 1)/3 with k >= 1 is divisible by at least one of the primes greater than 3 of any covering set. 0

%I #12 Jul 28 2015 05:48:51

%S 845729,952649,1272101,1313231,1418681,2407289,2948651,3071561,

%T 3401009,3672101,3795011,4036751,4041389,4164299,5112329,5514701,

%U 5725859,6126221,6202199,6436379,6693839,7433891,7624769,7727669,7767269,7939259,8031581,8421971

%N Numbers n congruent to 5 mod 6 such that every number of the form (n*4^k + 1)/3 with k >= 1 is divisible by at least one of the primes greater than 3 of any covering set.

%C The definition implies that every number of the form a(n)*4^k + 1 with k >= 1 has at least three distinct prime factors.

%Y Subsequence of A233551.

%K nonn

%O 1,1

%A _Arkadiusz Wesolowski_, Jun 16 2015

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.

Last modified May 20 19:00 EDT 2024. Contains 372720 sequences. (Running on oeis4.)