Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically.
A253856
Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically.
Terms
- a(0) =512a(1) =3264a(2) =19456a(3) =114880a(4) =660480a(5) =3727552a(6) =20872192a(7) =116568256a(8) =649733120a(9) =3617345728a(10) =20128173056a(11) =111975383232a(12) =622846260224
External references
- oeis: A253856