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A244564 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, 73, 109 }. 3

%I #12 Jul 12 2014 16:32:09

%S 934909,1259779,6828631,11822359,12151397,15285707,17220887,23277113,

%T 25912463,32971909,34689511,38206517,38257411,45181667,46337843,

%U 48339497,57410477,63676073,67510217,68468753,68708387,69169397,70312793,71151293

%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, 73, 109 }.

%C For n > 144, a(n) = a(n-144) + 412729590, the first 144 values are in the table.

%H Pierre CAMI, <a href="/A244564/b244564.txt">Table of n, a(n) for n = 1..144</a>

%F For n > 144, a(n) = a(n-144) + 412729590.

%Y Cf. A076336, A244073, A244561, A244562, A244563.

%K nonn

%O 1,1

%A _Pierre CAMI_, Jun 30 2014

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Last modified April 27 08:58 EDT 2024. Contains 372017 sequences. (Running on oeis4.)