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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
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OFFSET
0,17
REFERENCES
See
A007299
for references.
LINKS
Table of n, a(n) for n=0..35.
See
A007299
for links.
Index entries for sequences related to Hadamard matrices
Index entries for sequences related to maximal determinants
CROSSREFS
A007299
is the main entry for this sequence. Cf.
A003432
.
Sequence in context:
A229656
A216722
A368865
*
A336530
A087935
A243829
Adjacent sequences:
A036294
A036295
A036296
*
A036298
A036299
A036300
KEYWORD
nonn
,
nice
,
hard
,
more
AUTHOR
N. J. A. Sloane
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 September 9 18:54 EDT 2024. Contains 375765 sequences. (Running on oeis4.)