## Symplectic 3-cover of $K_{17}$

Number of vertices: | $51$ |

Diameter: | $3$ |

Intersection array: | $\{16,10,1;1,5,16\}$ |

Spectrum: | $16^1(\sqrt{16})^{17} (-1)^{16} (-\sqrt{16})^{17}$ |

Automorphism group: | $\mathrm{P} \Gamma \mathrm{L}(2,16)$ |

Distance-transitive: | Yes |

Antipodal |