{"schema":"vela.problem-packet.v0.1","problem":1103,"statement":"Let $A$ be an infinite sequence of integers such that every $n\\in A+A$ is squarefree. How fast must $A$ grow?","status":"open","seam":"raw","closureRoutes":[],"obligations":[],"attestations":[],"attempts":[],"velaLean":[],"oeis":[{"id":"A392164","name":"a(n) is the size of the largest subset S of {1,...,N} such that every element of S+S is squarefree.","terms":"1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,","url":"https://oeis.org/A392164"}],"generated_note":"derived view; the signed event log is the source of truth (vela check / vela reproduce)"}