Strongly regular graph proof

Reference no: EM13123387

Let n >= 2 be a number. Define the graph L2(n) as follows: Vertices are ordered pairs from the set {1, ..., n}. Two vertices are adjacent if they have the same first coordinate, or the same second coordinate (but not both).

Show that this is a strongly regular graph, and find its parameters.

Reference no: EM13123387

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