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A118985
Number of different values taken by the determinant of a symmetric real (0,1)-matrix of order n.
5
1, 2, 3, 5, 7, 11, 19, 40, 91, 214, 577
OFFSET
0,2
CROSSREFS
Cf. A006125 (number of symmetric real (0,1)-matrices of order (n-1)).
Sequence in context: A065726 A215161 A227907 * A092728 A089769 A033274
KEYWORD
nonn,hard,more
AUTHOR
Giovanni Resta, May 08 2006
EXTENSIONS
a(0)=1 prepended by Alois P. Heinz, Mar 16 2019
a(8) from Minfeng Wang, Jun 11 2024
a(9) from Minfeng Wang, Jun 12 2024
a(10) from Hugo Pfoertner, Jun 25 2024
STATUS
approved