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mathematics · integer sequences

OEIS conjectures and open questions

Conjectures and open questions arising from integer sequences catalogued by the OEIS.

This collection currently connects to a formal proof-search campaign; individual sequence claims should become separate problem records only after statement-level review.

Open reference source ↗

Attempt ledger

What has been tried?

A complete attempt outcome does not automatically change the editorial status of the underlying problem.

01
May 21, 2026 · campaignAlphaProof Nexus searches open Erdős and OEIS problems

A Lean-guided campaign reported nine Erdős results and 44 OEIS conjecture proofs, while also documenting failure modes such as restating the hard step behind a new unproved lemma.

Mixed campaignFormal evidence