Number of (n+2)X(1+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.

A257014

Number of (n+2)X(1+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.

Terms

    a(0) =15066a(1) =311364a(2) =6508512a(3) =136048896a(4) =2834352000a(5) =59049000000

External references