Number of (n+1) X (2+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.
A251243
Number of (n+1) X (2+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.
Terms
- a(0) =621a(1) =14265a(2) =327753a(3) =7530633a(4) =173028393a(5) =3975606801a(6) =91345992921
External references
- oeis: A251243