A118985 Number of different values taken by the determinant of a symmetric real (0,1)-matrix of order n.

1, 2, 3, 5, 7, 11, 19, 40

Offset

0,2

Links

Table of n, a(n) for n=0..7.

Crossrefs

Cf. A089472, A108150, A118987, A118986.

Sequence in context: A065726 A215161 A227907 * A092728 A089769 A033274

Adjacent sequences: A118982 A118983 A118984 * A118986 A118987 A118988

Keyword

nonn,more

Author

Giovanni Resta, May 08 2006

Extensions

a(0)=1 prepended by Alois P. Heinz, Mar 16 2019

Status

approved