Number of real n X n invertible symmetric (0,1) matrices.
A086899
Number of real n X n invertible symmetric (0,1) matrices.
Terms
- a(0) =1a(1) =4a(2) =32a(3) =528a(4) =18596a(5) =1280468a(6) =180452552a(7) =49970930912
External references
- oeis: A086899