Distance-regular graphs of valency 3

No. of verticesGraphIntersection Array
8Cube $Q_3 \cong K_{4,4}-I \cong H(3,2)$$\{3,2,1;1,2,3\}$
10Petersen graph $O_3$$\{3,2;1,1\}$
14Heawood graph$\{3,2,2;1,1,3\}$
18Pappus graph$\{3,2,2,1;1,1,2,3\}$
20Desargues graph $D(O_3)$$\{3,2,2,1,1;1,1,2,2,3\}$
20Dodecahedron$\{3,2,1,1,1;1,1,1,2,3\}$
28Coxeter graph$\{3,2,2,1;1,1,1,2\}$
30Tutte's 8-cage$\{3,2,2,2;1,1,1,3\}$
90Foster graph$\{3,2,2,2,2,1,1,1;1,1,1,1,2,2,2,3\}$
102Biggs-Smith graph$\{3,2,2,2,1,1,1;1,1,1,1,1,1,3\}$
126Tutte's 12-cage$\{3,2,2,2,2,2;1,1,1,1,1,3\}$

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Last updated: 21 February 2017