# OCME · Knowledge & practice explorer

302 MKO / 1,441 families / 360 batches / 36,000 questions.

36,000 second-context math/bilingual reviewed; 0 display/symbol-checked candidates. Source questions: candidate. English: ai_candidate. No new proof, Lean, SREG or training.

1 results; page 1/1.

## Question 22762: The Recurrence and Both Closed Forms Use the Same Zero-Based Index

- ID: `q-20261014-advance-20261111-r05-catalan-numbers-0062`; number: 22762
- Processing: second_context_reviewed
- MKO: [mko-catalan-numbers](/en/mko/mko-catalan-numbers/)
- Family: [qf-mod42-catalan-recurrence-closed-cross-check](/en/explore/?family=qf-mod42-catalan-recurrence-closed-cross-check)
- Batch: [batch-20261014-advance-20261111-r05-catalan-numbers-foundations](/en/explore/?batch=batch-20261014-advance-20261111-r05-catalan-numbers-foundations)
- [Derivation](/en/questions/q-20261014-advance-20261111-r05-catalan-numbers-0062/) / [Markdown](/en/questions/q-20261014-advance-20261111-r05-catalan-numbers-0062/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261111-r05-catalan-numbers-0062.json)