Number of symmetric singular n X n (0,1) matrices over the reals.
A086906
Number of symmetric singular n X n (0,1) matrices over the reals.
Terms
- a(0) =1a(1) =4a(2) =32a(3) =496a(4) =14172a(5) =816684a(6) =87982904a(7) =18748545824
External references
- oeis: A086906