Number of (n+1) X (3+1) 0..3 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
A251050
Number of (n+1) X (3+1) 0..3 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the absolute difference of its antidiagonal elements.
Terms
- a(0) =854a(1) =4334a(2) =10289a(3) =24893a(4) =53306a(5) =114512a(6) =237143a(7) =498593a(8) =1050871a(9) =2263156a(10) =4941211a(11) =10973705a(12) =24635963a(13) =55831811a(14) =127245743a(15) =291219638a(16) =668084936a(17) =1535123866a(18) =3530526046a(19) =8124227554a(20) =18700618529a(21) =43053766658a(22) =99130762082a(23) =228260731322
External references
- oeis: A251050