Half the number of n X n binary matrices differing in at most three positions between adjacent rows and at most three positions between adjacent columns.
A140338
Half the number of n X n binary matrices differing in at most three positions between adjacent rows and at most three positions between adjacent columns.
Terms
- a(0) =1a(1) =8a(2) =256a(3) =23045a(4) =3499498a(5) =540106922a(6) =68719476736
External references
- oeis: A140338