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Erdős problem 396

Is it true that for every kk there exists nn such that 0ik(ni)(2nn)?\prod_{0\leq i\leq k}(n-i) \mid \binom{2n}{n}?

No current result

No reviewed Result is current in Vela Mathematics Program. Retained source material is shown below.

Retained declaration

FormalConjectures/ErdosProblems/396.lean

Formal Conjectures

FormalConjectures/ErdosProblems/396.leanErdos396.erdos_3961 lineExact file
True ↔ ∀ (k : ℕ), ∃ n, n.descFactorial (k + 1) ∣ n.centralBinom
OpenStatement only, no proof

Reported activity

Work these sources record against this Problem. Source-reported attribution, not reviewed here.

  • AI collaborating with humans

    Erdős AI contributions wiki · 15 Mar, 2026

    Machine
    Claude, Codex, GPT
    People
    Malek Zribi
    Open the source record
  • AI collaborating with humans

    Erdős AI contributions wiki · 5-7 Apr, 2026

    Machine
    GPT-5.4 Pro, GPT-5.4 Thinking
    People
    Justin Dehorty, Nat Sothanaphan
    Open the source record

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