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A182010
Number of potential group developed cocyclic Hadamard matrices over Z_{(2*n+1)^2} X Z^2_2.
5
8, 398297088, 913318229998415698350080000, 18602466189203099377637961636627003234293304602017169408
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OFFSET
0,1
LINKS
Table of n, a(n) for n=0..3.
A. Baliga and K. J. Horadam,
Cocyclic Hadamard matrices over Z_t X Z^2_2
, Australas. J. Combin. 11(1995), 123-134.
FORMULA
a(n) = 8*
A109901
(2*n+1)^4 ([Baliga, et al., p. 130]).
CROSSREFS
Cf.
A109901
.
Sequence in context:
A076917
A076923
A076911
*
A051269
A004740
A108067
Adjacent sequences:
A182007
A182008
A182009
*
A182011
A182012
A182013
KEYWORD
nonn
AUTHOR
L. Edson Jeffery
, Apr 11 2012
STATUS
approved
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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)