Number of (n+2)X(2+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.

A252946

Number of (n+2)X(2+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.

Terms

    a(0) =747a(1) =2988a(2) =12915a(3) =57978a(4) =262494a(5) =1192149a(6) =5419521a(7) =24648309a(8) =112122162a(9) =510068277a(10) =2320483212a(11) =10556851032a(12) =48027819627a(13) =218500501500a(14) =994059717210

External references