Text this

Number:

Provider:

CAPTCHA:

 _    _      ___      _  __    _____     _____   
| || | ||   / _ \\   | |/ //  |  ___||  / ____|| 
| || | ||  | / \ ||  | ' //   | ||__   / //---`' 
| \\_/ ||  | \_/ ||  | . \\   | ||__   \ \\___   
 \____//    \___//   |_|\_\\  |_____||  \_____|| 
  `---`     `---`    `-` --`  `-----`    `----`

Please enter what you see:

Text this: On the Smith normal form of a skew-symmetric D-optimal design of order n≡2 (mod4)