{"schema":"vela.problem-packet.v0.1","problem":175,"statement":"Show that, for any $n\\geq 5$, the binomial coefficient $\\binom{2n}{n}$ is not squarefree.","status":"solved","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)"}