$\cong$ Incidence graph of Hadamard $(7,3,1)$-design

Number of vertices: | $14$ |

Diameter: | $3$ |

Intersection array: | $\{3,2,2; 1,1,3\}$ |

Spectrum: | $3^1 (\sqrt{2})^6 (-\sqrt{2})^6 (-3)^1$ |

Automorphism group: | $Aut(PSL(3,2)) \cong PSL(3,2):2 \cong PGL(2,7)$ |

Distance-transitive: | Yes |

Bipartite |

- Adjacency matrix
- Adjacency matrix in GAP format
- Adjacency matrix in CSV format
- Graph in GRAPE format