A199006 Related to number of Hadamard matrices of order 4n.

192, 21504, 190080, 10838016, 16440, 823616, 74306

Offset

1,1

Links

Table of n, a(n) for n=1..7.

V. Alvarez, J. A. Armario, M. D. Frau, and F. Gudlel, The maximal determinant of cocyclic (-1, 1)-matrices over D_{2t}, Linear Algebra and its Applications, 2011, Volume 436, Issue 4, 15 February 2012, Pages 858-873. See Table 2.

Crossrefs

Cf. A007299, A048615, A048616, A199005, A199007.

Sequence in context: A048616 A206707 A199007 * A001290 A187168 A078272

Adjacent sequences: A199003 A199004 A199005 * A199007 A199008 A199009

Keyword

nonn,hard

Author

N. J. A. Sloane, Nov 01 2011

Status

approved