$\text{Distance-regular graphs of valency 7}$

No. of verticesGraphIntersection Array
$16$$K_{8,8}-I$$\{7,6,1;1,6,7\}$
$24$$\text{Klein graph}$$\{7,4,1;1,2,7\}$
$30$$\text{Incidence graph of PG(3,2)}$$\{7,6,4;1,3,7\}$
$50$$\text{Hoffman-Singleton graph}$$\{7,6;1,1\}$
$64$$\text{Folded 7-cube}$$\{7,6,5;1,2,3\}$
$98$$\text{Incidence graph of }AG(2,7) \text{ minus a parallel class}$$\{7,6,6,1;1,1,6,7\}$
$100$$\text{Doubled Hoffman-Singleton graph}$$\{7,6,6,1,1;1,1,6,6,7\}$
$128$$\text{7-cube }Q_7 \cong H(7,2)$$\{7,6,5,4,3,2,1;1,2,3,4,5,6,7\}$
$330$$\text{Doubly truncated Witt graph}$$\{7,6,4,4;1,1,1,6\}$
$990$$\text{Ivanov-Ivanov-Faradjev graph}$$\{7,6,4,4,4,1,1,1;1,1,1,2,4,4,6,7\}$
$1416$$\text{Odd graph }O_7$$\{7,6,6,5,5,4;1,1,2,2,3,3\}$

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Last updated: 21 February 2017