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 A244072 Odd integers n such that for every integer k>0, n*2^k-1 has a divisor in the set {3, 5, 7, 13, 19, 37, 109}. 14

%I

%S 2136283,2251349,2924861,3781541,8010517,10645867,11124703,16413457,

%T 16593431,17713229,21992527,22146359,23572417,23835883,23909173,

%U 24359437,24688477,25124999,26711801,26880179,27094349,28151593,30577271,32126257

%N Odd integers n such that for every integer k>0, n*2^k-1 has a divisor in the set {3, 5, 7, 13, 19, 37, 109}.

%C For n > 144 a(n) = a(n-144) + 209191710, the first 144 values are in the table.

%H Pierre CAMI, <a href="/A244072/b244072.txt">Table of n, a(n) for n = 1..144</a>

%F For n > 144, a(n) = a(n-144) + 209191710.

%Y Cf. A076337, A244070, A244071, A244073, A244074, A244076.

%K nonn

%O 1,1

%A _Pierre CAMI_, Jun 19 2014

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Last modified July 15 16:29 EDT 2019. Contains 325049 sequences. (Running on oeis4.)