A119007 Number of n X n real symmetric (+1,-1)-matrices having minimal determinant (=A119000(n)).

1, 4, 16, 16, 416, 10240, 161280, 645120, 15482880, 402554880

Offset

1,2

Links

Table of n, a(n) for n=1..10.

Crossrefs

Cf. A119000, A119003, A119005, A119006.

Sequence in context: A009570 A232839 A140299 * A043052 A394571 A037409

Adjacent sequences: A119004 A119005 A119006 * A119008 A119009 A119010

Keyword

nonn,more

Author

Giovanni Resta, May 08 2006

Extensions

a(8)-a(10) from Max Alekseyev, Jun 17 2025

Status

approved