Number of n X n 0..1 arrays with exactly floor(n X n/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order.

A222321

Number of n X n 0..1 arrays with exactly floor(n X n/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order.

Terms

    a(0) =1a(1) =0a(2) =4a(3) =52a(4) =674a(5) =38238a(6) =2284728a(7) =620488671a(8) =174162198742

External references