Number of (n+1) X (1+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements less than the maximum of its antidiagonal elements.
A251012
Number of (n+1) X (1+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements less than the maximum of its antidiagonal elements.
Terms
- a(0) =63a(1) =423a(2) =2828a(3) =18910a(4) =126468a(5) =845838a(6) =5657125a(7) =37835923a(8) =253053775a(9) =1692471213a(10) =11319565544a(11) =75707381676a(12) =506345196624
External references
- oeis: A251012