This is one of two rank-3 strongly regular graphs with parameters $(256,45,16,6)$, the other graph being the halved folded 10-cube.
| Number of vertices: | $256$ |
| Diameter: | $2$ |
| Intersection array: | $\{45,28;1,6\}$ |
| Spectrum: | $45^1 13^{45} (-3)^{210}$ |
| Automorphism group: | $2^8:\left(\mathrm{A}_8 \times \mathrm{S}_3\right)$ |
| Distance-transitive: | Yes |
| Primitive |