T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements.
A250982
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements.
Terms
- a(0) =71a(1) =562a(2) =562a(3) =4459a(4) =12077a(5) =4459a(6) =35381a(7) =260056a(8) =260056a(9) =35381a(10) =280728a(11) =5598430a(12) =15156945a(13) =5598430a(14) =280728a(15) =2227408a(16) =120515358a(17) =883387252a(18) =883387252a(19) =120515358a(20) =2227408a(21) =17673153a(22) =2594308975a(23) =51487962431a(24) =139471732486a(25) =51487962431
External references
- oeis: A250982