Number of (n+1) X (3+1) 0..1 arrays with no 2 X 2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
A251312
Number of (n+1) X (3+1) 0..1 arrays with no 2 X 2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
Terms
- a(0) =61a(1) =238a(2) =890a(3) =3369a(4) =12859a(5) =48980a(6) =186162a(7) =707897a(8) =2693783a(9) =10250631a(10) =38999597a(11) =148376603a(12) =564538287a(13) =2147959151a(14) =8172471594a(15) =31094184171a(16) =118305857859a(17) =450125886029
External references
- oeis: A251312