Number of (n+1) X (n+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally.

A253461

Number of (n+1) X (n+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally.

Terms

    a(0) =81a(1) =800a(2) =2000a(3) =3744a(4) =8000a(5) =12800a(6) =32000a(7) =59904a(8) =128000a(9) =204800a(10) =512000a(11) =958464a(12) =2048000a(13) =3276800a(14) =8192000a(15) =15335424a(16) =32768000a(17) =52428800a(18) =131072000a(19) =245366784a(20) =524288000a(21) =838860800a(22) =2097152000a(23) =3925868544a(24) =8388608000a(25) =13421772800

External references