Publication Details

Seberry, J, A computer listing of Hadamard matrices, Combinatorial Mathematics: Proceedings of the International Conference, Canberra, August, 1977, 686, in Lecture Notes in Mathematics, Springer--Verlag, Berlin--Heidelberg--New York, 1978, 275-281.


A computer has been used to list all known Hadamard matrices of order less than 40,000. If an Hadamard matrix is not known of order 4q (q odd) then the smallest t so that there is an Hadamard matrix of order 2tq is given. Hadamard matrices are not yet known for orders 268, 412, 428.