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 __   __     ___     ______      ___      ______  
 \ \\/ //   / _ \\  |      \\   / _ \\   /_   _// 
  \   //   / //\ \\ |  --  //  / //\ \\  `-| |,-  
  / . \\  |  ___  |||  --  \\ |  ___  ||   | ||   
 /_//\_\\ |_||  |_|||______// |_||  |_||   |_||   
 `-`  --` `-`   `-` `------`  `-`   `-`    `-`'

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Text this: Skew-symmetric association schemes with two classes and strongly regular graphs of type L 2n-1(4n-1)