Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.
A257267
Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.
Terms
- a(0) =119716a(1) =2292196a(2) =29746116a(3) =380991361a(4) =3966480400a(5) =40331082276a(6) =361698799396
External references
- oeis: A257267