Number of symmetric n X n (0,1)-matrices over the reals with zero permanent.
A118989
Number of symmetric n X n (0,1)-matrices over the reals with zero permanent.
Terms
- a(0) =1a(1) =3a(2) =25a(3) =271a(4) =6881a(5) =254911a(6) =20903681a(7) =2725061631a(8) =771426498049
External references
- oeis: A118989