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A036297 Number of Hadamard matrices of order n. 9
1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 5, 0, 0, 0, 3, 0, 0, 0, 60, 0, 0, 0, 487, 0, 0, 0, 13710027, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,17
REFERENCES
See A007299 for references.
LINKS
See A007299 for links.
CROSSREFS
A007299 is the main entry for this sequence. Cf. A003432.
Sequence in context: A229656 A216722 A368865 * A336530 A087935 A243829
KEYWORD
nonn,nice,hard,more
AUTHOR
EXTENSIONS
a(32) from the H. Kharaghani and B. Tayfeh-Rezaie paper. - N. J. A. Sloane, Feb 11 2012
STATUS
approved

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Last modified May 2 03:56 EDT 2024. Contains 372178 sequences. (Running on oeis4.)