Catalan’s constant

The quantity is an upper bound on the irrationality exponent μ(G)\mu(G) of Catalan’s constant. A lower bound is better. The release states irrationality but gives no finite exponent bound; the baseline is the trivial extended-real upper bound +∞+\infty.

OpenAI baseline: +∞+\infty, released .

These results are Claimed: their authors published them, and we have not checked them.

BoundEvidence levelAuthorDateProof scope
87208720ClaimedS. Litsey
Proof scope

Challenge, Solution and comparator supplied.