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Paper   IPM / M / 7670
School of Mathematics
  Title:   A Hadamard matrix of order 428
1.  H. Kharaghani
2.  B. Tayfeh-Rezaie
  Status:   Published
  Journal: J. Combin. Des.
  Vol.:  13
  Year:  2005
  Pages:   435-440
  Supported by:  IPM
Four Turyn type sequences of lengths 36, 36, 36, 35 are found by a computer search. These sequences give new base sequences of lengths 71, 71, 36, 36 and are used to generate a number of T-sequences. The first order of many new Hadamard matrices constructible using new T-sequences is 428.

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