cp's OEIS Frontend

A244545 Integers n such that for every integer k>0, n*6^k+1 has a divisor in the set { 7, 13, 31, 37, 43 }.

%I A244545 #11 Jul 12 2014 16:29:50
%S A244545 243417,1161910,1293662,1434861,1446213,1460502,1473746,1689722,
%T A244545 2284675,2483249,2485141,2693347,2695449,2708061,2783733,3207751,
%U A244545 3237765,3273761,3684535,4120955,4154366,4189067,4274801,4354265
%N A244545 Integers n such that for every integer k>0, n*6^k+1 has a divisor in the set { 7, 13, 31, 37, 43 }.
%C A244545 For n > 24, a(n) = a(n-24) + 4488211, the first 24 values are in the data.
%C A244545 When the number a(n) has 4 or 9 as the last digit, the number a(n)*6^k-1 is always divisible by 5 and always has a divisor in the set { 7, 13, 31, 37, 97 } for every k.
%F A244545 For n > 24 a(n) = a(n-24) + 4488211.
%Y A244545 Cf. A076337, A243969, A244070, A244071, A244072, A244073, A244074, A244076, A244211.
%K A244545 nonn
%O A244545 1,1
%A A244545 _Pierre CAMI_, Jun 29 2014