Hoffman, A. J.; Singleton, R. R. On Moore graphs with diameters 2 and 3. (English) Zbl 0096.38102 IBM J. Res. Dev. 4, 497-504 (1960). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 6 ReviewsCited in 217 Documents Keywords:topology PDFBibTeX XMLCite \textit{A. J. Hoffman} and \textit{R. R. Singleton}, IBM J. Res. Dev. 4, 497--504 (1960; Zbl 0096.38102) Full Text: DOI Link Online Encyclopedia of Integer Sequences: Maximal number of nodes in graph of degree <= n and diameter 2 (another version).