$\text{Diameter-6 distance-regular graphs}$

No. of verticesIntersection ArrayGraph
$64$$\{6,5,4,3,2,1; 1,2,3,4,5,6\}$$\text{6-cube }Q_6 \cong H(6,2)$
$126$$\{3,2,2,2,2,2;1,1,1,1,1,3\}$$\text{Tutte's 12-cage}$
$189$$\{4,2,2,2,2,2;1,1,1,1,1,2\}$$\text{Line graph of Tutte's 12-cage}$
$728$$\{4,3,3,3,3,3;1,1,1,1,1,4\}$$\text{Incidence graph of }GH(3,3)$
$1416$$\{7,6,6,5,5,4;1,1,2,2,3,3\}$$\text{Odd graph }O_7$

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Last updated: 21 February 2017