Template:Did you know nominations/Centered octahedral number

The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: promoted by Yoninah (talk) 22:11, 18 September 2014 (UTC)

Centered octahedral number

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• ... that René Just Haüy modeled octahedral crystals mathematically as polycubes made of a centered octahedral number of cubes (pictured)?

• Reviewed: Peter Russell (fashion designer)

5x expanded by David Eppstein (talk). Self nominated at 04:18, 8 September 2014 (UTC).

• New enough (5x expanded on 7 September), long enough (2,543 characters). Fully referenced. Image licensed okay. Hook fine, verified against online source. QPQ done. Good to go! Hawkeye7 (talk) 20:31, 8 September 2014 (UTC)