T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column.
A250620
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column.
Terms
- a(0) =81a(1) =484a(2) =484a(3) =2704a(4) =6166a(5) =2704a(6) =13456a(7) =71610a(8) =71610a(9) =13456a(10) =64009a(11) =712806a(12) =1690656a(13) =712806a(14) =64009a(15) =290521a(16) =6676967a(17) =32944614a(18) =32944614a(19) =6676967a(20) =290521a(21) =1283689a(22) =58739370a(23) =595652178a(24) =1223112064a(25) =595652178a(26) =58739370a(27) =1283689a(28) =5541316
External references
- oeis: A250620