A244071 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, 73}.

777149, 790841, 1106681, 1715053, 3079469, 3580901, 4485343, 4570619, 4953397, 6055001, 8482363, 9203917, 9375479, 12000697, 12973451, 15728953, 17710319, 17789279, 19026359, 20512783, 21444847, 25245791, 25955141, 26829581, 28482703, 28492573, 28833011, 28949519

Offset: 1

Author

Pierre CAMI, Jun 19 2014

Keywords

• nonn

Comments

For n > 144 a(n) = a(n-144) + 140100870, the first 144 values are in the table.

Links

• Pierre CAMI, Table of n, a(n) for n = 1..144

Crossrefs

Cf. A076337, A244071, A244072, A244073, A244074, A244076.

Formula

For n > 144, a(n) = a(n-144) + 140100870.