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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

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