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Zbl 1076.05017
Kharaghani, H.; Tayfeh-Rezaie, B.
A Hadamard matrix of order 428. (English)
[J] J. Comb. Des. 13, No. 6, 435-440 (2005). ISSN 1063-8539

Summary: 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 new $T$-sequences. The first order of many new Hadamard matrices constructible using these new $T$-sequences is 428.
MSC 2000:
*05B20 (0,1)-matrices (combinatorics)

Keywords: Hadamard matrices; Turyn type sequences; base sequences; $T$-sequences; Yang numbers

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