Number of (n+1)X(1+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.
A253400
Number of (n+1)X(1+1) 0..2 arrays with every 2X2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.
Terms
- a(0) =81a(1) =480a(2) =2890a(3) =17560a(4) =106540a(5) =646240a(6) =3920448a(7) =23781448a(8) =144267352a(9) =875147104a(10) =5308894208a(11) =32204831776a(12) =195362700680
External references
- oeis: A253400