reviewed
approved
reviewed
approved
proposed
reviewed
editing
proposed
Carlos Rivera, <a href="http://www.primepuzzles.net/problems/prob_035.htm">Problem 35. More wrong turns...</a>, The Prime Puzzles and Problems Connection.
approved
editing
proposed
approved
editing
proposed
This is one of the 2 17 sets given in the link below.
proposed
editing
editing
proposed
allocated for Michel MarcusTatsuru Watanabe's set of 47 squarefree numbers whose reciprocals add to 1, with the property that each number has exactly two distinct prime factors.
6, 10, 14, 15, 21, 22, 26, 33, 34, 35, 38, 39, 46, 51, 55, 57, 58, 62, 65, 69, 74, 82, 85, 86, 87, 91, 93, 95, 106, 111, 123, 133, 145, 155, 159, 185, 203, 215, 253, 265, 287, 319, 493, 583, 731, 851, 1073
1,1
This is one of the 2 sets given in the link below.
Tatsuru Watanabe, <a href="https://arxiv.org/abs/2009.03275">New examples of the representation of 1 by the sum of reciprocals of semiprime numbers</a>, arXiv:2009.03275 [math.NT], 2020.
<a href="/index/Ed#Egypt">Index entries for sequences related to Egyptian fractions</a>
Cf. A201650.
allocated
nonn,fini,full
Michel Marcus, Sep 08 2020
approved
editing
allocated for Michel Marcus
recycled
allocated