On the density of B2-bases

A sequence A of positive integers is called a Sidon sequence or a B2-sequence if the pairwise sums are all distinct. If, in addition every non-zero integer appears in the set of differences we call A a B2-basis.

[1]  János Komlós,et al.  A Dense Infinite Sidon Sequence , 1981, Eur. J. Comb..

[2]  Andrew Pollington,et al.  The Integers as Differences of a Sequence , 1981, Canadian Mathematical Bulletin.