T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.

A237730

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.

Terms

    a(0) =81a(1) =348a(2) =348a(3) =1510a(4) =2152a(5) =1510a(6) =6610a(7) =13496a(8) =13496a(9) =6610a(10) =28877a(11) =86010a(12) =122940a(13) =86010a(14) =28877a(15) =125428a(16) =542946a(17) =1145290a(18) =1145290a(19) =542946a(20) =125428a(21) =545952a(22) =3412698a(23) =10499035a(24) =15828110a(25) =10499035a(26) =3412698a(27) =545952a(28) =2381432a(29) =21521906

External references