{"schema":"vela.problem-packet.v0.1","problem":66,"statement":"Is there $A\\subseteq \\mathbb{N}$ such that\\[\\lim_{n\\to \\infty}\\frac{1_A\\ast 1_A(n)}{\\log n}\\]exists and is $\\neq 0$?","status":"open","seam":"raw","closureRoutes":[],"obligations":[],"attestations":[],"attempts":[],"velaLean":[],"oeis":[],"generated_note":"derived view; the signed event log is the source of truth (vela check / vela reproduce)"}